jn 8:55-58
You do not know him, but I know him. And if I should say that I do not know him, I would be like you a liar. But I do know him and I keep his word. Abraham your father rejoiced to see my day; he saw it and was glad. So the Jews said to him, "You are not yet fifty years old and you have seen Abraham?" Jesus said to them, "Amen, amen, I say to you, before Abraham came to be, I AM.".