Numbers 23:19 King James Version (KJV)
19 God is not a man, that he should lie; neither the son of man, that he should repent: hath he said, and shall he not do it? or hath he spoken, and shall he not make it good?

And God said unto Moses, I AM THAT I AM: and he said, Thus shalt thou say unto the children of Israel, I AM hath sent me unto you. Exodus 3:14

Jesus said unto them, Verily, verily, I say unto you, Before Abraham was, I am. John 8:58

I, even I, am the LORD; and beside me there is no saviour. Isaiah 43:11

Hear, O Israel: The LORD our God is one LORD Deauteronomy 6:4

Exodus 20:3King James Version (KJV)
3 Thou shalt have no other gods before me.

And Thomas answered and said unto him, My Lord and my God. John 20:28