Malachi 2:14-15 English Standard Version (ESV)
14 But you say, “Why does he not?” Because the Lord was witness between you and the wife of your youth, to whom you have been faithless, though she is your companion and your wife by covenant. 15 Did he not make them one, with a portion of the Spirit in their union?[a] And what was the one God[b] seeking?[c] Godly offspring. So guard yourselves[d] in your spirit, and let none of you be faithless to the wife of your youth.
Malachi 2:14-15 New International Version (NIV)
14 You ask, “Why?” It is because the Lord is the witness between you and the wife of your youth. You have been unfaithful to her, though she is your partner, the wife of your marriage covenant.
15 Has not the one God made you? You belong to him in body and spirit. And what does the one God seek? Godly offspring.[a] So be on your guard, and do not be unfaithful to the wife of your youth.