Lexicon

H3820 - lev

Strong's: H3820 (lev) · H3824 (levav) · BLB lookup Pronunciation: lave (lev); lay-vawb' (levav) Part of speech: masculine nouns; the two forms are functionally synonymous (levav is the older / more poetic form; lev is the more common prose form). Frequency: ~860 occurrences combined (~600 lev + ~260 levav), extremely common; distributed throughout the Hebrew Bible, with concentrations in Deuteronomy, Psalms, Proverbs, and the prophets. LXX equivalent: καρδία (kardia), direct correspondent. See G2588 - kardia.

Semantic range (Brown-Driver-Briggs)

The Hebrew lev / levav is significantly broader than the modern English "heart." It denotes the integrating center of the inner person, encompassing functions modern English distributes across multiple terms (mind, will, conscience, emotions, character, memory).

The physical heart / chest, the bodily organ; rare; mostly figurative even in literal-anatomy contexts.
The seat of cognition / thought / understanding, lev as mind. "What you have in your heart" = "what you are thinking" (Gen 17:17, Abraham said in his heart; the Hebrew idiom for "thought to himself"). Wisdom is "in the heart" (Prov 2:10; 14:33). "A heart to know" (Deut 29:4).
The seat of will / decision / intention, lev as the choosing self. "Set your lev to" = "decide to" / "commit to." Pharaoh's hardening of heart (Ex 7-14) is a will-and-choice phenomenon, not merely an emotion.
The seat of conscience / moral awareness, lev as the ethical-self. David's lev "smote him" after the census (2 Sam 24:10); his lev smote him after cutting Saul's robe (1 Sam 24:5).
The seat of memory, lev as where things are kept / stored. "Lay up in your heart" (Deut 11:18); Mary "kept all these things, pondering them in her lev / kardia" (Luke 2:19, 51, Greek-NT activation).
The seat of emotion, lev as feeling: joy, sorrow, fear, love, hatred. The dominant English "heart" sense is here, but it is one of many in Hebrew, not the primary one.
The seat of character / disposition, lev as who one fundamentally is. "A man after His own lev" (1 Sam 13:14, David). "Pure of lev" (Pss 24:4; 51:10; 73:1; Matt 5:8).
The "inner person" / "self", by extension, lev sometimes simply means one's inmost self.

Theological force, the integrating center of the human person

The Hebrew lev is the dominant biblical anthropology term. Other anthropology-words (H5315 - nephesh, H7307 - ruach, H1320 - basar) describe humans from particular angles; lev describes the integrating center, the place where thought, will, emotion, memory, conscience, and character converge and from which action flows.

Stream 1, The heart's primacy as the moral seat

Proverbs 4:23, "watch over your lev with all diligence, for from it flow the springs of life." Wisdom literature consistently treats the lev as the source of one's life-direction. The deeper-than-actions-seat, the place where the moral self is formed and from which actions emerge.

Deuteronomy 6:5 / the Shema Yisrael, "you shall love the LORD your God with all your lev (levav) and with all your nephesh and with all your meod." The lev leads the triplet, the integrating center of love-of-God; the others (life-energy, capacity) are subordinate. Jesus quotes this in Matt 22:37 / Mark 12:30 / Luke 10:27, expanded in the NT to four-fold (heart, soul, strength / capacity, mind / cognitive function), recognizing that NT Greek's kardia needs supplementation by dianoia / ischus to capture what the OT lev held in one term.

Stream 2, Hardness of heart and circumcision of heart

The OT develops two contrasting heart-conditions: hardened lev (the rebellious-unbelieving condition) and circumcised lev (the redeemed condition).

Hardness of heart:

Ex 4:21; 7:3, 13, 14, 22; 8:15, 19, 32; 9:7, 12, 34, 35; 10:1, 20, 27; 11:10; 14:4, 8, 17, Pharaoh's heart-hardening across the Exodus narrative
Deut 29:19 ("walking in the stubbornness of my lev"); 1 Sam 6:6
Ezek 11:19; 36:26, promise of removing the heart of stone and giving a heart of flesh

Circumcision of heart:

Deut 10:16, "circumcise your lev"
Deut 30:6, "the LORD your God will circumcise your lev", divine action enabling
Jer 4:4, "circumcise yourselves to the LORD; remove the foreskin of your lev"
Rom 2:28-29, Paul's NT activation: "true circumcision is of the kardia, by the Spirit, not by the letter"

The lev-circumcision tradition is the OT-Hebrew prefiguration of NT regeneration. The New Covenant in Jeremiah 31:33, "I will put My law within them and on their lev I will write it", pairs with Ezekiel 36:26 ("a new heart will I give you") to anchor the NT doctrine of regeneration / new birth (cf. John 3:1-15; Titus 3:5).

Stream 3, Heart as covenantal-personal commitment

To love / serve / fear God with all your heart (be-khol-levavcha) is to integrate the whole-self in covenantal commitment. This is the OT-Hebrew anti-fragmentation doctrine: God is not satisfied with external observance, ritual conformity, or partial allegiance, He demands the integrating center of the person.

Deut 4:29; 10:12; 11:13; 13:3; 26:16; 30:2, 6, 10
1 Sam 7:3; 12:20, 24
1 Kgs 8:23, 48; 2 Kgs 23:3, 25
2 Chr 6:14; 15:12, 15; 22:9; 31:21; 34:31
Ps 9:1; 86:12; 111:1; 119:2, 10, 34, 58, 69, 145
Jer 24:7; 29:13
Joel 2:12, "return to Me with all your lev"

Notable verses

The Shema and full-heart commitment

Deuteronomy 6:5, the Shema's love-the-LORD command
Deuteronomy 30:6, divine circumcision of the lev
Joel 2:12-13, "return to Me with all your lev"

Hardness of heart

Exodus 7-14, Pharaoh's heart-hardening (~20 occurrences)
Deuteronomy 29:18-20, covenant warning
Ezekiel 11:19; 36:26, heart-of-stone vs heart-of-flesh

New Covenant heart-promise

Jeremiah 31:33, "I will put My law within them and on their heart I will write it"
Ezekiel 36:26-27, "a new heart will I give you"
Romans 2.28-29, true circumcision of the heart

Wisdom, heart as moral source

Proverbs 4:23, "watch over your heart with all diligence"
Proverbs 3:1, 5; 7:3; 23:7, 26; 27:19
Ecclesiastes 7:2; 8:5; 10:2

Heart-cleansing / repentance

Psalms 51:10, "create in me a clean heart, O God, and renew a steadfast spirit within me"
Psalms 24:4, "he who has clean hands and a pure heart"
Psalms 73:1, "God is good... to those who are pure in heart"
Matthew 5:8, "blessed are the pure in heart, for they shall see God"

Heart as understanding / cognition

1 Kings 3:9, 12, Solomon's request for "an understanding lev"
Genesis 17:17; 24:45, "said in his heart"
Proverbs 2:10; 14:33, wisdom in the heart
Isaiah 6:10, "make the lev of this people insensitive" (the hardening-prophecy quoted in Matt 13:14-15; John 12:40; Acts 28:26-27)

NT activation

Mark 7:21, "from within, out of the heart of men, proceed evil thoughts..."
Romans 10.9-10, "if you confess with your mouth Jesus as Lord and believe in your heart that God raised Him from the dead, you will be saved... with the kardia a person believes, resulting in righteousness"
Luke 6:45, "the good man out of the good treasure of his kardia brings forth what is good"
2 Corinthians 3:3, "you are a letter of Christ... written... on tablets of human hearts"
Hebrews 8:10; Hebrews 10:16, Jeremiah 31:33 quotations

Patristic / scholarly note

The biblical lev / kardia is one of the most theologically loaded anthropology terms. Augustine (Confessions 10.27, "Late have I loved You, O Beauty ever ancient, ever new... You were within me, but I was outside, and there I sought You"), develops the cor inquietum (restless heart) tradition that has shaped Christian piety since.

Calvin (Institutes III.3.5, "the work of repentance"; III.7.1, self-denial), emphasizes the lev as the seat of the regenerated will. The Reformed ordo salutis (regeneration → faith → repentance → sanctification) is heart-centered: the Spirit's work is on the lev / kardia, not merely on intellect or behavior.

Pascal (Pensées), "the heart has its reasons that reason knows not of", captures the integrating-center / pre-rational dimension of lev / kardia. Pascal's tradition has shaped the Christian apologetic engagement with reason-and-affection in modernity.

In modern Reformed scholarship, Hans Walter Wolff (Anthropology of the Old Testament, 1974), the standard treatment of OT anthropological terminology, with extensive discussion of lev / levav. G.K. Beale (A New Testament Biblical Theology, 2011), develops the new-heart-promise trajectory from Jer 31 / Ezek 36 to NT regeneration.

The regeneration-as-new-heart tradition is the canonical anchor for the Reformed doctrine of monergistic regeneration. Lev-of-stone cannot become lev-of-flesh by its own self-effort; only the divine circumcision-of-heart can do that. This lev-as-passive-recipient-of-divine-action is one of the strongest OT supports for the Reformed sola gratia tradition.

Verses in this codex

See Obsidian's backlinks pane for every verse page linking here. Anchors: Deuteronomy 6:5 (the Shema), Jeremiah 31:33 (New Covenant heart-promise), Ezekiel 36:26-27 (heart of flesh), Proverbs 4:23 (the heart's primacy), Psalms 51.10 (clean heart), Matthew 5:8 (pure in heart), Romans 10.9-10 (heart-belief).