John 8:55-58

Though you do not know him, I know him. If I said I did not, I would be a liar like you, but I do know him and obey his word. Your father Abraham rejoiced at the thought of seeing my day; he saw it and was glad.’ ‘You are not yet fifty years old,’ they said to him, ‘and you have seen Abraham!’ ‘Very truly I tell you,’ Jesus answered, ‘before Abraham was born, I am!’