KJV:
Yet ye say, Wherefore? Because the LORD hath been witness between thee and the wife of thy youth, against whom thou hast dealt treacherously: yet is she thy companion, and the wife of thy covenant.
NASB:
"Yet you say, 'For what reason?' Because the LORD has been a witness between you and the wife of your youth, against whom you have dealt treacherously, though she is your companion and your wife by covenant.
KJV:
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.
NASB:
"But not one has done so who has a remnant of the Spirit. And what did that one do while he was seeking a godly offspring? Take heed then to your spirit, and let no one deal treacherously against the wife of your youth.