John 6:64-71

64But there are some of you who do not believe.” (For Jesus knew from the beginning who those were who did not believe, and who it was who would betray him.) 65And he said, “This is why I told you that no one can come to me unless it is granted him by the Father.” 66After this many of his disciples turned back and no longer walked with him. 67So Jesus said to the twelve, “Do you want to go away as well?” 68Simon Peter answered him, “Lord, to whom shall we go? You have the words of eternal life, 69and we have believed, and have come to know, that you are the Holy One of God.” 70Jesus answered them, “Did I not choose you, the twelve? And yet one of you is a devil.” 71He spoke of Judas the son of Simon Iscariot, for he, one of the twelve, was going to betray him.