John 6:60-63

⁶⁰These things he said, teaching in the synagogue, in Capharnaum.

⁶¹Many therefore of his disciples, hearing it, said: This saying is hard, and who can hear it?

⁶²But Jesus, knowing in himself, that his disciples murmured at this, said to them: Doth this scandalize you?

⁶³If then you shall see the Son of man ascend up where he was before?