John 6:60-63

60Therefore, when many of his disciples heard this, they said, “This teaching is hard. Who can accept it?”

61Jesus, knowing in himself that his disciples were grumbling about this, asked them, “Does this offend you?

62Then what if you were to observe the Son of Man ascending to where he was before?

63The Spirit is the one who gives life. The flesh doesn’t help at all. The words that I have spoken to you are spirit and are life.