John 6:63-68; John 12:49-50; John 17:8

John 6:63-68

63 It is the spirit that quickeneth; the flesh profiteth nothing: the words that I speak unto you, they are spirit, and they are life.

64 But there are some of you that believe not. For Jesus knew from the beginning who they were that believed not, and who should betray him.

65 And he said,Therefore said I unto you, that no man can come unto me, except it were given unto him of my Father.

66 From that time many of his disciples went back, and walked no more with him.

67 Then said Jesus unto the twelve,Will ye also go away?

68 Then Simon Peter answered him, Lord, to whom shall we go? thou hast the words of eternal life.

John 12:49-50

49 For I have not spoken of myself; but the Father which sent me, he gave me a commandment, what I should say, and what I should speak.

50 And I know that his commandment is life everlasting: whatsoever I speak therefore, even as the Father said unto me, so I speak.

John 17:8

8 For I have given unto them the words which thou gavest me; and they have received them, and have known surely that I came out from thee, and they have believed that thou didst send me.