John 6
60 Ref Many therefore of his disciples, when they had heard this, said, This is an hard saying; who can hear it?
61 Ref When Jesus knew in himself that his disciples murmured at it, he said unto them, Doth this offend you?
62 Ref What and if ye shall see the Son of man ascend up where he was before?
63 Ref 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 Ref 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 Ref 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 Ref From that time many of his disciples went back, and walked no more with him.