John 3:12-14

Young's Literal Translation

¹² if the earthly things I said to you, and ye do not believe, how, if I shall say to you the heavenly things, will ye believe?

¹³ and no one hath gone up to the heaven, except he who out of the heaven came down -- the Son of Man who is in the heaven.

¹⁴ `And as Moses did lift up the serpent in the wilderness, so it behoveth the Son of Man to be lifted up,