In Islamic theology, the concept of Tawhid defines God as an absolute, solitary monad—a single Person with no internal plurality or relational complexity. When looking at the root of monotheism in the Hebrew Scriptures (the Tawrat and Tanakh), it is often assumed that ancient Judaism shared this exact monadic framework.
However, a closer examination of the original Biblical Hebrew text reveals that the micro-structure of the Old Testament breaks a strict unitarian mold. Long before the New Testament was written, the Hebrew Scriptures revealed a complex, multi-personal monotheism—an undivided unity that explicitly accommodates a plurality of Persons within the one true God, YHWH.
The architectural core of Israel’s monotheism is the Shema. While it establishes that YHWH alone is to be worshiped, the specific language used leaves structural room for internal plurality.
The following verse serves as Israel's primary declaration of monotheistic worship, framing God's nature not as a solitary monad, but as an undivided unity:
Deuteronomy 6:4:
Hear, O Israel! Yahweh is our God, Yahweh is one!
The Hebrew word for "one" here is echad. While it denotes a numerical value of one, it frequently signifies a composite or unified oneness rather than an isolated singularity. For instance, the exact same word is used in Genesis 2:24 when a husband and wife become "one (echad) flesh," and in Ezekiel 37:17 when two separate sticks become "one (echad)."
If the text intended to demand a strict, isolated unitarianism akin to Tawhid, a different Hebrew word was readily available: yachid, which explicitly means "solitary," "only," or "isolated." We see yachid used clearly when God commands Abraham regarding his son:
Genesis 22:2:
He said, “Take your son, your only (yachid) son Isaac, whom you love, and go to the land of Moriah, and offer him there as a burnt offering on one of the mountains of which I shall tell you.
Had yachid been placed in the Shema, it would have mathematically locked the divine nature into a solitary individual. By choosing echad, the Hebrew text establishes a monotheism of an indivisible, relational unity, structurally keeping the door wide open for multi-personal complexity.
Throughout the narrative turning points of scripture, God explicitly speaks of Himself using plural pronouns and plural verbs. In Biblical Hebrew, while nouns can have a "plural of majesty" (pluralis magnificentiae), verbs and pronouns never do. When a subject uses plural verbs, it indicates active, internal dialogue.
The following text captures the intimate consultation within the divine essence immediately preceding the architectural design of human beings:
Genesis 1:26:
Then God said, “Let Us make man in Our image, according to Our likeness, so that they will have dominion over the fish of the sea and over the birds of the sky and over the cattle and over all the earth and over every creeping thing that creeps on the earth.
While unitarian critics try to argue that God is speaking to a "Divine Council" of angels, the rest of the Old Testament vigorously rejects this. Isaiah 40:14 states plainly that YHWH took counsel with no one, and Genesis clarifies that man is not made in the image of angels. These plural expressions—seen also at the Tower of Babel ("Let Us go down") and in Isaiah 6:8 ("Who will go for Us?")—reveal an interpersonal reality existing within the singular true God.
One of the most striking disruptions to a monadic view of God is a recurring figure known as the Malak YHWH. In Hebrew, malak simply means a functional "messenger" or "deputy." However, this particular figure operates under an intentional biblical paradox: He is simultaneously distinguished from YHWH (as a messenger sent by Him) and fully identified as YHWH.
The following passage records the historical account of the burning bush, where the text seamlessly equates the physical presentation of the Angel with the absolute voice of the Almighty:
Exodus 3:2–6:
And the angel of Yahweh appeared to him in a blazing fire from the midst of the bush; and he looked, and behold, the bush was burning with fire, yet the bush was not consumed... God called to him from the midst of the bush and said... “I am the God of your father, the God of Abraham, the God of Isaac, and the God of Jacob.” Then Moses hid his face, for he was afraid to look at God.
This is not a mere representative speaking on God's behalf; this figure accepts sacrifices, swears oaths by Himself, explicitly forgives sins (Zechariah 3:1–5), and claims to possess the very essence of God within Himself ("My name is in him", Exodus 23:21). The Old Testament explicitly presents a visible, interactive YHWH who steps into history, distinct from the invisible, transcendent YHWH in heaven.
The Hebrew Scriptures contain explicitly relational passages where one divine Person called YHWH acts upon or speaks to another Person who is also recognized as YHWH.
The following verse relates the historical destruction of Sodom, distinguishing textually between a localized, visible presence of YHWH and YHWH in the heavens:
Genesis 19:24:
And Yahweh rained on Sodom and Gomorrah brimstone and fire from Yahweh out of heaven.
This is even more distinct in the prophetic books, where intra-divine relational sending becomes explicit:
Zechariah 2:11:
Then I will dwell in your midst, and you will know that Yahweh of hosts has sent Me to you.
Here, the speaker is directly identified as YHWH, yet He states that YHWH of hosts has sent Him. A unitarian monad cannot send himself, interact with himself, or sit at his own right hand (as seen in Psalm 110:1).
A strict, unitarian monad like the Islamic concept of Allah requires the text of the Old Testament to be parsed through forced abstractions. To maintain absolute unitarianism, one must explain away the plural pronouns, ignore the explicit divine worship given to the visible Malak YHWH, and find workarounds for passages where YHWH speaks directly to YHWH.
The original Hebrew text does not support a monadic theology. Instead, the organic framework of the Old Testament establishes a complex, relational monotheism—one that lays the foundational architecture for the full manifestation of the Father, Son, and Holy Spirit.