Argument

OT vs NT God Objection Defeater

Intro

"The Old Testament God is a wrathful tribal warlord. The New Testament God is a gentle Father of love. They are clearly not the same being." Dawkins runs the line at the start of The God Delusion. Marcion ran it in the second century and got excommunicated for it.

The objection works only by reading both Testaments selectively. The Old Testament's most-quoted self-description of God is "compassionate and gracious, slow to anger, abounding in lovingkindness and truth" (Exodus 34:6-7). Hosea pictures God weeping over Israel like a heartbroken parent. Psalm 103 says His mercy is from everlasting to everlasting. Ezekiel says God takes no pleasure in the death of the wicked.

The New Testament, meanwhile, has Jesus pronouncing seven woes on the Pharisees, calling them whitewashed tombs and a brood of vipers (Matthew 23). He warns His listeners to fear the One who can throw body and soul into hell (Luke 12:5). The book of Acts opens its church history with God striking Ananias and Sapphira dead on the spot. Revelation closes the canon with the Lamb riding to war.

Jesus also settled the question directly. He told the Pharisees the Father they claimed to worship is the same God Moses wrote about (John 5:46-47). He said heaven and earth would pass away before the smallest letter of the Law did (Matthew 5:17-18). He treated the Hebrew Scriptures as His Father's voice from start to finish.

Marcion was rejected by every major Church Father (Justin, Irenaeus, Tertullian, Augustine) because the canon is too tightly stitched together to support a two-Gods reading. Both Testaments hold both mercy and judgment because mercy and judgment are both true of the one God.

Quick reply in conversation: "Read Exodus 34 and Matthew 23 side by side. The grace is all over the Old Testament. The wrath is all over the New. Same God."

In full

Debate-prep defeater for the Marcion-revival polemic that the OT-God is a different and morally inferior being from the NT-Father (Dawkins / Hitchens / Ehrman / evilbible.com / cultural-Christian half-Marcionism). Written for narration off-the-page during live debate; built around an equivocation diagnosis (one-God-with-varied-actions-across-redemptive-history vs two-distinct-divine-beings), Jesus's explicit identification of the OT-YHWH as His Father, and the canonical demonstration that grace-and-mercy attributes pervade the OT while wrath-and-judgment attributes pervade the NT.

Argument structure

Master objections to the whole argument

MO1, "Jesus quoted the OT but corrected it (Mt 5:21-48 'You have heard... but I say to you')"

The antitheses correct Pharisaic interpretation of Mosaic law, not Mosaic law itself, Jesus introduces each unit with "You have heard that it was said" (Pharisaic-rabbinic teaching formula), not "It is written" (canonical-Scripture formula He uses elsewhere, Mt 4:4, 7, 10). The Sermon's framing-statement Mt 5:17-18 explicitly forbids the abolition reading. Jesus is fulfilling, not correcting.

MO2, "OK, Jesus identified with the OT-God, but Jesus could be wrong"

This concedes the textual case. The objector is now arguing that the NT itself contradicts Marcion's reading; the original "OT-vs-NT-God" framing collapses. The fallback "Jesus could be wrong" reduces the argument from "Christianity is internally incoherent" to "Christianity might be externally false", a different and weaker claim, defeated separately by the cumulative case for Christ's authority (resurrection, fulfilled prophecy, etc.; see Argument from the Resurrection).

MO3, "But Christianity actually FUNCTIONS as if there were two Gods, pop-Christian sermons emphasize NT love and downplay OT judgment"

This concedes the canonical case while flagging a cultural-Christian problem. It's a true observation about modern preaching deformations, not about biblical theism. The Christian response is to read the whole canon (per Augustine Novum in Vetere latet); the failure of pop-Christian preaching to do so is a critique of pop-Christianity, not of biblical theism.

MO4, "The OT explicitly endorses commands that NO modern person, even Jesus, would endorse, kill all the Canaanites, stone disobedient sons, etc."

This is the Canaanite Conquest and Herem / Mosaic Capital Punishment / OT Atrocities Descriptive vs Prescriptive Objection composite, handled by the descriptive-vs-prescriptive hermeneutic + ANE genre + canonical-trajectory engagement at those individual hubs. The OT-vs-NT-God objection at issue here is a different argument (the meta-claim that the two Testaments reveal different beings); even granting the difficulties of Conquest passages, those passages don't establish two-beings.

P1, The objection requires two distinct divine beings

Affirmative case

1. Marcion's explicit theology: the OT-YHWH is the Demiurge (a lesser, just-but-cruel creator-god), categorically distinct from the Father of Jesus Christ. The argument requires this metaphysical claim.
2. Without two-beings, the objection collapses to the trivially-true observation that "the same God acted differently in different historical-covenantal moments", which neither Christianity nor any Abrahamic tradition has ever disputed.
3. Dawkins / Hitchens / Ehrman implicitly need the same Sense-B claim to generate the moral contrast they deploy. "The OT-God is the most unpleasant character in fiction" requires the OT-God to be a distinct character; if it's the same God with varied actions, the catalogue-of-pejoratives flattens out.

Anticipated objections

1. "We're not Marcion-style dualists, we're saying the same canon is morally inconsistent."
2. "Christians make the two-Gods distinction in practice anyway (preaching emphasis)."

Rebuttals

1. Then the objection collapses: a single God acting differently in different redemptive-historical moments is the standard Abrahamic reading and is not an internal incoherence claim. The objector either commits to Marcion's two-beings claim (then engages P2-P6) or accepts the one-God-with-varied-actions reading and loses the moral-contrast force.
2. See MO3, pop-Christian deformations are not the canonical-theological position. The objector is welcome to critique pop-Christianity; that's a separate argument from the OT-vs-NT-God objection.

P2, Jesus identifies the OT-YHWH as His Father

Affirmative case

1. Mt 5:17-18, "do not think I came to abolish the Law or the Prophets... not the smallest letter or stroke shall pass." Jesus's most explicit OT-affirmation.
2. Lk 24:27, 44, post-resurrection: "beginning with Moses and with all the prophets, He explained to them the things concerning Himself in all the Scriptures." Jesus reads the OT Christologically, as about Himself.
3. John 5:46-47, "if you believed Moses, you would believe Me, for he wrote about Me." Moses and Jesus are continuous, not opposed.
4. John 8:56-58, "Before Abraham was born, I am" (egō eimi, the LXX-rendered divine name from Ex 3:14). Jesus identifies Himself as the OT-YHWH. The Jewish leaders' attempted stoning shows they understood the claim.
5. Mt 23:35, Jesus references the entire OT-witness-arc from Abel to Zechariah as one continuous divine-prophet-line, with "this generation" held responsible, establishing OT-NT continuity at the explicit level.

Anticipated objections

1. "Mt 5:17-18 is followed by 'You have heard... but I say to you', Jesus IS correcting the OT."
2. "Egō eimi in John 8 might just be 'I am [he]' (the Messiah), not divine name."
3. "Jesus's positive references to Moses are pastoral framing, not a Christological identification."

Rebuttals

1. See MO1. The antitheses correct Pharisaic interpretation ("you have heard it said" = rabbinic-tradition formula), not Mosaic law. Jesus's framing-statement Mt 5:17-18 explicitly forbids the abolition reading.
2. The Jewish-leader response (immediate attempted stoning, John 8:59) demonstrates they heard the claim as divine-name appropriation. Their response is the reception-history evidence; ambiguous "I am [he]" does not provoke stoning under blasphemy charges. (See John 8.24 for full treatment.)
3. The Lk 24 + John 5 passages explicitly identify Moses's writing as about Christ. This is identification, not pastoral framing.

P3, OT contains the NT's grace-and-mercy attributes

Affirmative case

1. Exodus 34:6-7, the most-quoted OT passage about God's character (cf. Num 14:18; Neh 9:17; Ps 86:15, 103:8, 145:8; Joel 2:13; Jonah 4:2; Nah 1:3): "the LORD, the LORD God, compassionate and gracious, slow to anger, abounding in lovingkindness and truth, who keeps lovingkindness for thousands, who forgives iniquity, transgression and sin." The OT itself defines YHWH's character primarily in mercy-vocabulary.
2. Hosea 11:8, "How can I give you up, Ephraim? How can I surrender you, O Israel?... My heart is turned over within Me, all My compassions are kindled."
3. Isaiah 49:15, "Can a woman forget her nursing child and have no compassion on the son of her womb? Even these may forget, but I will not forget you."
4. Psalm 103 (entire psalm): "as a father has compassion on his children, so the LORD has compassion on those who fear Him." (v. 13)
5. Lamentations 3:22-23, "the LORD's lovingkindnesses indeed never cease, for His compassions never fail. They are new every morning."
6. Ezekiel 18:23, 32; 33:11, YHWH explicitly disclaims pleasure in the death of the wicked; calls for repentance.

Anticipated objections

1. "These are minority OT passages; the dominant OT-tone is wrath."
2. "Mercy in the OT is for Israel; the NT extends it to all peoples, that IS a substantive difference."

Rebuttals

1. Quantitative reading rebuts the claim. Exodus 34:6-7's character-description is repeated/echoed ~7 times across the OT canon. The Psalter's treatment of YHWH is dominated by mercy-vocabulary (hesed "lovingkindness" ~127× in Psalms alone). The "wrath-dominant OT" reading is a selective sampling.
2. This is a redemptive-historical expansion, not a change-of-divine-being. The Abrahamic covenant from Gen 12:3 promises "in you all the families of the earth will be blessed"; Isa 49:6 explicitly extends YHWH's salvation to "the ends of the earth"; Isa 56:6-8; Jonah is the OT case-study in YHWH's mercy toward foreign Nineveh. The NT brings the OT promise to fulfillment, not a new divine-character.

P4, NT contains the OT's judgment-and-wrath attributes

Affirmative case

1. Mt 23, seven woes against the Pharisees ("brood of vipers... how will you escape the sentence of hell?"), Jesus's most extended invective; rhetorically exceeds most OT prophetic passages.
2. Mt 25:31-46, eschatological judgment: "depart from Me, accursed ones, into the eternal fire."
3. Mk 9:43-48, Gehenna: "where their worm does not die" (citing Isa 66:24); Lk 12:5, "fear Him who has authority to cast into hell."
4. John 3:36 + Rom 1:18-32, extended orgē theou indictment; Acts 5:1-11, Ananias and Sapphira struck dead (NT analog of Korah/Uzzah).
5. Revelation 19:11-21, the divine warrior treading the winepress of the wrath of Almighty God; Rev 6:16-17; Rev 14:9-11. The book of Revelation is more violent in judgment-imagery than any OT prophetic text.
6. 2 Thess 1:7-9, "in flaming fire, dealing out retribution... eternal destruction."

Anticipated objections

1. "Jesus's judgment-rhetoric is mostly metaphorical; OT-judgment was real-historical."
2. "Hell is a worse-than-OT-punishment, so the NT-God is morally worse."

Rebuttals

1. The objection cuts the other way: if NT-judgment is metaphorical-eschatological, that mitigates its severity vs OT-judgment-as-historical-temporal. But Acts 5 (Ananias / Sapphira) is real-historical NT-judgment, refuting the all-metaphorical reading. And the divine-character continuity is preserved either way.
2. See Hell as Eternal Torment Objection, Hell as the locked-from-inside-room (Lewis); orthodox-doctrine vs popular-caricature distinction; multi-position Christian tradition (ECT / conditionalism / universalism). The NT's hell-doctrine is in OT seed-form (Isa 66:24, Dan 12:2); not a new severity-level introduced by a different God.

P5, The Father-Son atonement-relation is collaborative

Affirmative case

1. John 3:16, "For God so loved the world that He gave His only begotten Son", the Father's initiative.
2. Rom 5:8, "God demonstrates His own love toward us in that while we were yet sinners Christ died for us", Father's love expressed through Christ's death.
3. Rom 8:32, "He who did not spare His own Son but delivered Him over for us all", the Father's costly initiative.
4. 2 Cor 5:19, "God was in Christ reconciling the world to Himself", Father and Son acting together.
5. 1 John 4:9-10, "in this is love, not that we loved God, but that He loved us and sent His Son to be the propitiation for our sins", Father's love sending the Son.
6. John 10:17-18, Jesus: "this commandment I received from My Father", Christ's self-giving is the Father's mission expressed; not a rescue-from-the-Father.

Anticipated objections

1. "Penal-substitution still requires the Father to pour wrath on the Son, that IS internal divine conflict."
2. "Trinitarian unity is post-hoc theological covering; the gospel-narrative actually shows Father-Son tension (Mt 27:46 'Why have You forsaken Me?')."

Rebuttals

1. Penal-substitution rightly understood holds that Christ's voluntary self-offering bears divine wrath against sin (Rom 3:25-26); this is the Father-Son acting in unified will against sin, not the Father acting against the Son. The wrath-bearing is the Son's free obedience to the shared Trinitarian mission. Pop-atonement-distortions ("the Father was angry; Jesus saved us from the Father") are deformations, not the orthodox position.
2. Mt 27:46's "My God, My God, why have You forsaken Me?" is a quotation of Ps 22:1, the opening of a psalm that ends in vindication and global-worship (Ps 22:27-31). Jesus is invoking the whole psalm's trajectory at the cross. The cry is the Son experiencing the substitutionary identification with sinners' alienation, not the Father abandoning the Son in some metaphysical rupture.

Christian satisfaction (this is a comparative-form premise)

The Christian framework satisfies this premise uniquely: only a Trinitarian theism that holds Father-Son perichoresis can both (a) preserve OT-NT divine-being unity and (b) make sense of Christ's atoning death without positing internal divine conflict. Unitarian alternatives (whether Marcionite two-Gods, Modalist single-mode, Arian creature-Son) cannot achieve this balance.

P6, Patristic tradition unanimously rejected Marcion

Affirmative case

1. Justin Martyr Dialogue with Trypho (c. AD 155), Mosaic prophecy fulfilled in Christ.
2. Irenaeus Adv. Haer. I.27 + III.3 + IV.27, "one and the same God who created the world and gave the Law and called Abraham and spoke through the prophets is the Father of our Lord Jesus Christ."
3. Tertullian Adversus Marcionem (5 books, c. AD 207-212), most extended ancient refutation; line-by-line engagement with Marcion's truncated-Luke + Pauline canon.
4. Augustine Quaest. in Hept. 2.73: "Novum in Vetere latet, Vetus in Novo patet", standard medieval + Reformation hermeneutic.
5. Aquinas ST I-II q.98-108 + III q.40-46; Luther preface to OT (1523); Calvin Inst. 2.10-11, sustained Reformation-era treatment of OT-NT covenant unity-and-distinction.

Anticipated objections

1. "Patristic consensus is canon-politics, not theology."
2. "Marcion was condemned for Pauline-canon politics."

Rebuttals

1. The rejection was theological, argued from the canonical text. Tertullian's 5-book Adversus Marcionem is line-by-line textual engagement, not political. The "canon-politics" framing is unfalsifiable and ignores the actual arguments.
2. The Marcionite controversy occurred BEFORE Pauline-canon politics had stabilized. Marcion was rejected on hermeneutic substance. The "canon-politics" framing is a 19th-c. higher-criticism projection.

Live-cite kit

Scripture

• Mt 5:17-18, "do not think I came to abolish the Law or the Prophets... not the smallest letter or stroke shall pass." (Jesus's most explicit OT-affirmation; head off the "Jesus came to fix the OT" framing immediately.)
• Exodus 34:6-7, "the LORD God, compassionate and gracious, slow to anger, abounding in lovingkindness and truth." (The OT itself defines YHWH's character primarily in mercy-vocabulary; deploy when challenged on "OT-wrath dominance.")
• Revelation 19:11-21, the divine warrior treading the winepress of the wrath of Almighty God. (NT-judgment imagery exceeds anything in OT prophetic literature; deploy when challenged on "NT-only-love.")

Scholarly

• Tertullian, Adversus Marcionem (5 books, c. AD 207-212), definitive ancient refutation; the line-by-line engagement establishes the patristic theological consensus.
• Augustine, Quaest. in Hept. 2.73, "Novum in Vetere latet, Vetus in Novo patet", the standard medieval + Reformation hermeneutic.
• Christopher Wright, The God I Don't Understand (2008), canonical-evangelical engagement; specifically addresses Conquest + judgment passages within OT-NT canonical unity.
• Paul Copan, Is God a Moral Monster? (2011), the canonical apologetic engagement of the Dawkins / Hitchens form of the objection.

Aphorisms

• Augustine (Quaest. in Hept. 2.73): "The New is in the Old concealed; the Old is in the New revealed."
• Irenaeus (Adv. Haer. IV.9.1): "One and the same God who called Abraham and gave the Law and spoke through the prophets is the Father of our Lord Jesus Christ."
• Luther (preface to OT, 1523): "Search the Old Testament... here you will find the swaddling clothes and manger in which Christ lies."

Tactical notes

Order of deployment:

1. Open with the equivocation diagnosis. "When you say 'the OT-God' and 'the NT-God,' do you mean two distinct divine beings (Marcion's claim, condemned by every major patristic theologian), or do you mean the same God acting differently in different redemptive-historical moments? Because if it's the latter, neither Christianity nor any Abrahamic tradition disputes it."
2. Force-commit on Jesus's identification. Mt 5:17-18 + John 8:58. Jesus self-identifies as the OT-YHWH; if Christianity is incoherent on Marcion's reading, Jesus Himself is incoherent, but the objector is using "Jesus revealed the better God" rhetoric. The Jesus-on-the-OT data destroys the rhetorical setup.
3. Drop Exodus 34:6-7. The OT's own most-quoted character-description of YHWH is 90% mercy-vocabulary. Hesed in the Psalter is 127×. The "OT-wrath-dominant" reading is selective sampling.
4. Drop Revelation 19 + Acts 5. NT-judgment imagery exceeds OT prophetic literature; Acts 5 is real-historical NT-judgment (Ananias / Sapphira). The "NT-only-love" reading is selective sampling in the other direction.
5. Land on the patristic consensus. Tertullian wrote 5 books refuting Marcion. The position is not novel-Christian-apologetics, it's the unanimous reading of the entire patristic + medieval + Reformation tradition.
6. Close with the meta-defeater. "Your moral framework that judges OT-judgment as monstrous is itself a Christian inheritance. You're standing on Christianity to attack one half of the canon while preserving the other."

Deflection patterns to anticipate:

• "You're cherry-picking grace-passages from the OT" → "Exodus 34:6-7 is the OT's most-quoted character-description of YHWH and is repeated 7+ times across the canon. Hesed in the Psalter is 127×. Whatever the right hermeneutic is, 'OT-wrath-dominant' isn't it."
• "NT-violence is metaphorical-eschatological, not real-historical" → "Acts 5 (Ananias / Sapphira) is real-historical NT-judgment. And if NT-judgment is metaphorical-eschatological, that's a mitigation compared to OT-judgment-as-historical-temporal. The objector's strongest move actually narrows the contrast."
• "This is post-hoc Christian apologetics" → "Tertullian wrote 5 books on this in AD 207-212. Irenaeus rebutted Marcion explicitly in AD 180. The position is older than the Council of Nicaea. The 'post-hoc' framing has the historical direction backwards."

Force-commit moves:

• "Will you grant that Jesus quotes the OT extensively as authoritative scripture?" (yes, this is uncontested) "Will you grant that Jesus calls the OT-YHWH His Father (Mt 11:25; John 5:17-18, etc.)?" (yes, they have to) "Then you've already committed to canonical-unity at the level Jesus Himself committed to it. Your objection is Marcion's, and Jesus rebutted it implicitly by His own usage."

What NOT to defend:

• Don't defend pop-Christian preaching that under-emphasizes the OT or oversells the OT-NT contrast. Concede that's a pastoral failure.
• Don't defend the deformation of penal-substitutionary atonement that frames the Father as angry-deity-from-whom-Jesus-rescues-us. Concede that's a popular-level misstatement; cite Rom 5:8 + 1 John 4:9-10 + 2 Cor 5:19 for the orthodox collaborative-Trinitarian framework.
• Don't defend the Conquest passages by minimizing their difficulty. Use the descriptive-vs-prescriptive + ANE-genre + canonical-trajectory framework (see Canaanite Conquest and Herem); concede the texts are hard; argue the right hermeneutic preserves OT-NT unity while engaging the difficulty honestly.

Pastoral pivot: For someone genuinely troubled by OT-judgment passages (not polemicizing, actually wrestling): the wrestling is itself biblical (Habakkuk 1; Job; Ps 73; Jer 12; Hab 1). The OT itself models the lament-and-question approach. The pastoral work is to walk with them through specific passages (Conquest, Capital Punishment, etc.) using Christopher Wright's The God I Don't Understand (2008) + Paul Copan's Is God a Moral Monster? (2011) as guides. The goal is not to dissolve the difficulty but to engage it within the canonical framework that includes Christ's identification with the OT-YHWH and the cross as the ultimate divine-judgment-and-mercy-together event.

Connection to Scripture

• Mt 5:17-18, Jesus on OT continuity
• Lk 24:27, 44, post-resurrection Christological OT-reading
• John 5:46-47, Moses wrote about Christ
• John 8:56-58, Jesus as the OT-egō eimi
• Mt 23:35, Abel through Zechariah as one continuous OT-witness-arc
• Exodus 34:6-7, YHWH's mercy-character (most-quoted OT character-description)
• Hosea 11:8 + Isaiah 49:15 + Psalm 103 + Lamentations 3:22-23, OT mercy-passages
• Matthew 23 + 25:31-46 + Mk 9:43-48 + Lk 12:5 + John 3:36 + Rom 1:18-32 + Rev 19, NT judgment-passages
• John 3:16 + Rom 5:8 + 8:32 + 2 Cor 5:19 + 1 John 4:9-10, Father-Son collaborative atonement-relation

Patristic and scholarly note

Irenaeus Adv. Haer. I.27 (refutation) + III.3 + IV.27 anchors the 2nd-c. patristic engagement; Tertullian Adversus Marcionem (5 books c. 207-212) is the load-bearing ancient refutation; Augustine Quaest. in Hept. 2.73 + De Civ. Dei 16-17 is the medieval-Western standard; Aquinas ST I-II q.98-108 + III q.40-46 is the scholastic synthesis; Luther's preface to OT (1523) + Calvin Inst. 2.10-11 is the Reformation engagement; modern: Christopher Wright The God I Don't Understand (2008), Paul Copan Is God a Moral Monster? (2011), G. K. Beale + D. A. Carson Commentary on the NT Use of the OT (2007), John Goldingay OT Theology (3 vols., 2003-2009), Sandra Richter The Epic of Eden (2008).

See also

• OT vs NT God Objection, companion concept hub
• Canaanite Conquest and Herem, sister evilbible-defeater (load-bearing OT-judgment passage)
• Mosaic Capital Punishment, sister evilbible-defeater
• Hardening Pharaohs Heart, sister evilbible-defeater
• Flood Genocide Objection, sister evilbible-defeater
• Sodom and Gomorrah Objection, sister evilbible-defeater
• Imprecatory Psalms Objection, sister evilbible-defeater
• OT Atrocities Descriptive vs Prescriptive Objection, companion hermeneutic
• God and the Killing of Children, emotionally-loaded OT-judgment subset
• Cosmic Dictator Objection, companion divine-character defeater
• Hell as Eternal Torment Objection, companion NT-judgment-passage engagement
• Atheist Moral Realism Objection, meta-defeater
• John 8.24, Jesus's egō eimi divine-name claim