The crowd answered him: "We have heard, from the law, that the Christ remains forever. And so how can you say, 'The Son of man must be lifted up?' Who is this Son of man?"
Little sons, for a brief while, I am with you. You shall seek me, and just as I said to the Jews, 'Where I am going, you are not able to go,' so also I say to you now.
But the animal nature of man does not perceive these things that are of the Spirit of God. For it is foolishness to him, and he is not able to understand it, because it must be examined spiritually.