63The spirit is the life giver; the flesh is of no value: the words which I have said to you are spirit and they are life.
64But still some of you have no faith. For it was clear to Jesus from the first who they were who had no faith, and who it was who would be false to him.
65And he said, This is why I said to you, No man is able to come to me if he is not given the power to do so by the Father.
66Because of what he said, a number of the disciples went back and would no longer go with him.
67So Jesus said to the twelve, Have you a desire to go away?
68Then Simon Peter gave this answer: Lord, to whom are we to go? you have the words of eternal life;
69And we have faith and are certain that you are the Holy One of God.