NET

15 No one who has even a small portion of the Spirit in him does this. What did our ancestor do when seeking a child from God? Be attentive, then, to your own spirit, for one should not be disloyal to the wife he took in his youth.

Darby

15 And did not one make [them]? and the remnant of the Spirit was his. And wherefore the one? He sought a seed of God. Take heed then to your spirit, and let none deal unfaithfully against the wife of his youth,

KJV

15 And did not he make one? Yet had he the residue of the spirit. And wherefore one? That he might seek a godly seed. Therefore take heed to your spirit, and let none deal treacherously against the wife of his youth.