Nicodemus answered and said to Him, "How can these things be?"
Then Mary said to the angel, "How can this be, since I do not know a man?"
Jesus answered and said to him, "Are you the teacher of Israel, and do not know these things?
Nicodemus said to Him, "How can a man be born, being old? Can he enter a second time into his mother's womb and be born?"
"The wind blows where it wills, and you hear its sound, but you do not know from where it comes and where it goes. So is everyone who has been born of the Spirit."
Therefore the Jews were contending with one another, saying, "How can this Man give us His flesh to eat?"
Therefore many of His disciples, when they heard this, said, "This is a hard saying; who can hear it?"