John 6:63 WBT

⁶¹  When Jesus knew in himself that his disciples murmured at it, he said to them, Doth this offend you?

⁶²  [What] if ye shall see the Son of man ascend up where he was before?

⁶³  It is the spirit that reviveth; the flesh profiteth nothing: the words that I speak to 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 he was that would betray him.

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