63 The Spirit is the one who gives life; the flesh profits nothing. The words that I have spoken to you are spirit and are life.
64 But there are some of you who do not believe.” (For Jesus knew from the beginning who they were who did not believe, and who it was who would betray him.)
65 And he said, “Because of this I said to you that no one can come to me unless it has been granted to him by the Father.”
66 For this reason many of his disciples drew back and were not walking with him any longer.
67 So Jesus said to the twelve, “You do not want to go away also, do you?”
68 Simon Peter answered him, “Lord, to whom would we go? You have the words of eternal life.
69 And we have believed, and have come to know, that you are the Holy One of God.”