John 3:9

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

The Jews then debated among themselves, saying, How can this man give us his flesh to eat?

Many of his disciples hearing it, said, This is an hard saying: who can hear it?

Then said Mary to the angel, How shall this be, seeing I know not a man?

And looking up he said, I see men, as trees walking.

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

Treasury of Scripture Knowledge

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

For every one that asketh, receiveth; and he that seeketh findeth; and to him that knocketh, it shall be opened.

They said to him, How were thine eyes opened?