John 3:9

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

The Jews, therefore, were wrangling with one another, saying, "How can This Man give us His flesh to eat?"

Many, therefore, of His disciples, having heard this, said, "This is a hard saying! Who can hear it?"

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

And, looking up, he said, "I behold men, because I see them as trees walking."

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

Treasury of Scripture Knowledge

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

for every one who asks receives, and he who seeks finds, and to him who knocks it shall be opened.

They said, therefore, to him, "How then were your eyes opened?"