John 3:9

Nicodemus answered and said to him: How can these things be?

The Jews, therefore, contended among themselves, saying: How can this man give us his flesh to eat?

Therefore, many of his disciples, when they heard him, said: This is a hard saying; who can hear it?

But Mary said to the angel: How shall this be, since I know not a man?

And he looked up and said: I see men, like trees, walking.

Nicodemus said to him: How can a man be born when he is old? Can he enter his mother's womb the second time, and be born?

Treasury of Scripture Knowledge

Nicodemus answered and said unto him, How can these things be?

For every one that asks, receives; and he that seeks, finds; and to him that knocks, it shall be opened.

Then they said to him: How were your eyes opened?