John 3:4

Context
3:4 Nicodemus said to him, “How can a man be born when he is old? He cannot enter his mother’s womb and be born a second time, can he?” ¹ 

John 6:42

Context
6:42 and they said, “Isn’t this Jesus the son of Joseph, whose father and mother we know? How can he now say, ‘I have come down from heaven’?”