Passage

Deuteronomy 6.4

Book: Deuteronomy · NASB95

Verse

"Hear, O Israel! The LORD is our God, the LORD is one!" (Deuteronomy 6:4, NASB95)

Immediate context (±2 verses)

NASB95 (NASB95)

"2. so that you and your son and your grandson might fear the LORD your God, to keep all His statutes and His commandments which I command you, all the days of your life, and that your days may be prolonged. 3. O Israel, you should listen and be careful to do it, that it may be well with you and that you may multiply greatly, just as the LORD, the God of your fathers, has promised you, in a land flowing with milk and honey."

"4. Hear, O Israel! The LORD is our God, the LORD is one!"

"5. You shall love the LORD your God with all your heart and with all your soul and with all your might. 6. These words, which I am commanding you today, shall be on your heart." (Deuteronomy 6:2-6, NASB95)

Setting

Speaker: Moses, in his final addresses to Israel (Deuteronomy is structured as Moses's three farewell sermons before crossing into Canaan).
Audience: the second-generation Israelites at the brink of entering the Promised Land.
Location: the plains of Moab, east of the Jordan opposite Jericho.
Time period: end of the 40-year wilderness wandering, c. 1406 BC (early-date) or 1230s BC (late-date).

Theological reading

The verse is the single most important theological declaration in the Hebrew Bible, known as the Shema (from the opening word Shema, "Hear"). It is the foundational confession of Jewish monotheism, recited daily in Jewish liturgy, central to Jewish identity, and confessed by Jesus as the greatest commandment alongside its companion in v. 5 (Mark 12:29).

The Hebrew text:

שְׁמַע יִשְׂרָאֵל יְהוָה אֱלֹהֵינוּ יְהוָה אֶחָד Shema Yisrael, YHWH eloheinu, YHWH echad

The four-word core is YHWH eloheinu YHWH echad, literally "YHWH our-God YHWH one." The grammar permits multiple translations:

"The LORD our God, the LORD is one" (NASB95, ESV, traditional), emphasizes monotheism (one God exists).
"The LORD is our God, the LORD alone" (NRSV alternative), emphasizes covenantal exclusivity (we worship YHWH only).
"The LORD our God is one LORD" (KJV), older reading.
"The LORD is our God, the LORD is one" (NLT, NIV).

All major translations preserve the core monotheistic claim. Some scholars argue the verse is more about exclusive worship ("YHWH alone is our God") than about strict numerical monotheism ("only one God exists"); both senses are present in the broader Deuteronomy theology.

The echad / yachid distinction

The Hebrew word for "one" in the Shema is אֶחָד (echad, H0259 - echad), not יָחִיד (yachid, "only / solitary / unique"). This lexical choice is theologically significant.

Echad, one, united, together, first, compatible with internal complexity / unity-in-plurality. Used of "one flesh" in Genesis 2:24 (man + woman = one flesh); "one day" in Genesis 1:5 (evening + morning = one day); "one cluster of grapes" in Numbers 13:23 (many grapes, one cluster).
Yachid, only, solitary, unique, single, excludes internal plurality. Used of Isaac as Abraham's "only son" (Genesis 22:2); of Jephthah's daughter as his "only daughter" (Judges 11:34).

If Moses had wanted to assert "YHWH is strictly solitary, no internal complexity possible," the natural Hebrew word would have been yachid. The choice of echad, the unity-permitting word, is Christian-traditional grounds for the claim that the Shema does not exclude trinitarian-monotheism.

The argument is modest, not absolute: echad is also used of strict numerical "one" in many contexts (Genesis 2:11 "one of the rivers"). The Shema does not by itself prove the Trinity. But it is not incompatible with the Trinity, and it pointedly avoids the term that would have been incompatible. See H0259 - echad for the full lexical case.

Jesus and the Shema

Jesus quotes the Shema in Mark 12:29, the only NT-recorded explicit citation by Jesus. When asked "what is the foremost commandment?" Jesus answers:

"The foremost is, 'HEAR, O ISRAEL! THE LORD OUR GOD IS ONE LORD; AND YOU SHALL LOVE THE LORD YOUR GOD WITH ALL YOUR HEART, AND WITH ALL YOUR SOUL, AND WITH ALL YOUR MIND, AND WITH ALL YOUR STRENGTH.'" (Mark 12:29-30)

Jesus's affirmation of the Shema is decisive: strict monotheism is the foundational confession of Christian faith. Trinitarian theology is not a replacement for the Shema's monotheism but an unfolding of what the one God is like. The early church understood itself as the heir of Israel's monotheism, not as introducing a new pantheon.

This is the Christian counter to the Jewish / Muslim / JW objection: "Christianity violates the Shema." Christian theology affirms the Shema while interpreting YHWH echad through the canonical witness of Father / Son / Spirit. One God in three persons preserves the one of the Shema while explaining the NT data.

Patristic / scholarly note

The patristic tradition uniformly affirms the Shema while developing Trinitarian doctrine. Tertullian (Against Praxeas 13, c. AD 213) argues at length that one God (the Shema) and three persons (the Father / Son / Spirit) are not contradictory. Athanasius (Discourses Against the Arians I.6) and the Cappadocians develop the one essence, three persons (mia ousia, treis hypostaseis) framework as the systematic-theological articulation of how the Shema and the NT data fit together.

The Reformation Confessions (Westminster Confession 2.3; Heidelberg Catechism Q. 25; Belgic Confession 8) all affirm both the Shema's monotheism and the Trinitarian formula.

Modern Christian-Jewish apologetic: Michael Brown (Answering Jewish Objections to Jesus, vol. 2, 2000); Walter Kaiser (Recovering the Unity of the Bible, 2009); Daniel Boyarin (The Jewish Gospels, 2012, Jewish scholar arguing pre-Christian Jewish-monotheistic context permitted plural-divine theology).

Apologetic significance

The Shema is the locus of:

Jewish-Christian dialogue, does Christianity violate the Shema by affirming Trinity? The Christian answer: no, because the Shema's echad (united-one) is compatible with Trinitarian-personhood; yachid would have excluded it but the Shema avoids that word.
Christian-Muslim dialogue, Islam claims Christianity is shirk (associating partners with God). The Christian response: the same framework, Trinity is one God, not three; it preserves monotheism.
Christian-JW dialogue, JWs cite the Shema to deny Trinity. The Christian response: the Shema's echad + the canonical witness of Christ's deity together require Trinitarian-monotheism.

Key words

H0259 - echad, echad (one), the lexical pivot of the verse
H3068 - YHWH, the divine name (twice in the verse)
H0430 - elohim, elohim (God; eloheinu "our God"), paired with YHWH
H3173 - yachid, yachid (only / solitary), the contrasting term Moses did not use

Connection to other passages

Genesis 1.26, "Let Us make man", the plural-deliberation that the Shema's echad is compatible with
Mark 12:29, Jesus citing the Shema
John 10:30, "I and the Father are one (hen)", the Greek-NT parallel
John 17:21-23, Trinitarian unity grounded in the divine being