Parallel
John 3:6
Patriarchal Greek New Testament (1904) · Berean Standard Bible
τὸ γεγεννημένον ἐκ τῆς σαρκὸς σάρξ ἐστι, καὶ τὸ γεγεννημένον ἐκ τοῦ Πνεύματος πνεῦμά ἐστι.
Flesh is born of flesh, but spirit is born of the Spirit.