You ask,1 "Why?" It is because the LORD is acting as the witness2 between you and the wife of your youth,3 because you have broken faith with her, though she is your partner, the wife of your marriage covenant.4
Has not [the LORD] made them one?5 In flesh and spirit they are his. And why one? Because he was seeking godly offspring.a6 So guard yourself7 in your spirit, and do not break faith8 with the wife of your youth.