John 6:61-63

Young's Literal Translation

⁶¹ And Jesus having known in himself that his disciples are murmuring about this, said to them, `Doth this stumble you?

⁶² if then ye may behold the Son of Man going up where he was before?

⁶³ the spirit it is that is giving life; the flesh doth not profit anything; the sayings that I speak to you are spirit, and they are life;