Bible Verses About Unity of God: God himself

Thus says ADONAI, Isra'el's King and Redeemer, ADONAI-Tzva'ot: "I am the first, and I am the last; besides me there is no God.

Don't be frightened, don't be afraid - Didn't I tell you this long ago? I foretold it, and you are my witnesses. Is there any God besides me? There is no other Rock - I know of none."

For thus says ADONAI, who created the heavens, God, who shaped and made the earth, who established and created it not to be chaos, but formed it to be lived in: "I am ADONAI; there is no other.

Let them stand and present their case! Indeed, let them take counsel together. Who foretold this long ago, announced it in times gone by? Wasn't it I, ADONAI? There is no other God besides me, a just God and a Savior; there is none besides me.