Exodus 3:14 - I AM THAT I AM

Exo 3:13 And Moses said unto God, Behold, when I come unto the children of Israel, and shall say unto them, The God of your fathers hath sent me unto you; and they shall say to me, What is his name? what shall I say unto them?

Exo 3:14 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.

One can’t find a much more significant verse than this.

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