John 8:55-58

Yet you do not know Him, but I know Him fully. If I said I did not know Him, I would be a liar like you. But I do know Him and keep His word. Your father Abraham [greatly] rejoiced to see My day (My incarnation). He saw it and was delighted.” [Heb 11:13] Then the Jews said to Him, “You are not even fifty years old, and You [claim to] have seen Abraham?” Jesus replied, “I assure you and most solemnly say to you, before Abraham was born, I Am.” [Ex 3:14]