John 6:64-71

64 But there be some of you that believe not. For Jesus knew from the beginning, which were believing, and who was to betray him.

65 And he said, Therefore I said to you, that no man may come to me, but it were given to him of my Father.

66 From this time many of his disciples went aback, and went not now with him.

67 Therefore Jesus said to the twelve, Whether ye will also go away?

68 And Simon Peter answered to him, Lord, to whom shall we go? Thou hast words of everlasting life;

69 and we believe, and have known [and we have believed, and know], that thou art Christ, the Son of God.

70 Therefore Jesus answered to them, Whether I chose not you twelve, and one of you is a fiend [and one of you is a devil]?

71 And he said this of Judas of Simon Iscariot, for this was to betray him, when he was one of the twelve.