Genesis 2:24 For this reason a man shall leave his father and his mother, and be joined to his wife; and they shall become one flesh.

Malachi 2:14 "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.

Malachi 2:15 "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. (NASB ©1995)