John 3:11 WEB

⁹  Nicodemus answered him, 'How can these things be?'

¹⁰  Jesus answered him, 'Are you the teacher of Israel, and don't understand these things?

¹¹  Most assuredly I tell you, we speak that which we know, and testify of that which we have seen, and you don't receive our witness.

¹²  If I told you earthly things and you don't believe, how will you believe if I tell you heavenly things?

¹³  No one has ascended into heaven, but he who descended out of heaven, the Son of Man, who is in heaven.