Jesus said to them, "Most assuredly, I say to you, before Abraham was, I AM."
John 8:58
Surrounding context
8:57 Then the Jews said to Him, "You are not yet fifty years old, and have You seen Abraham?"
8:58 Jesus said to them, "Most assuredly, I say to you, before Abraham was, I AM."
8:59 Then they took up stones to throw at Him; but Jesus hid Himself and went out of the temple, going through the midst of them, and so passed by.