Have we not all one father? Has not one God created us? Why then are we faithless to one another, profaning the covenant of our ancestors?
Judah has been faithless, and abomination has been committed in Israel and in Jerusalem; for Judah has profaned the sanctuary of the Lord, which he loves, and has married the daughter of a foreign god.
May the Lord cut off from the tents of Jacob anyone who does this—any to witness or answer, or to bring an offering to the Lord of hosts.
References for Malachi 2:12
And this you do as well: You cover the Lord's altar with tears, with weeping and groaning because he no longer regards the offering or accepts it with favor at your hand.
You ask, "Why does he not?" Because the Lord was a 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.
Did not one God make her? Both flesh and spirit are his. And what does the one God desire? Godly offspring. So look to yourselves, and do not let anyone be faithless to the wife of his youth.
References for Malachi 2:15
For I hate divorce, says the Lord, the God of Israel, and covering one's garment with violence, says the Lord of hosts. So take heed to yourselves and do not be faithless.
References for Malachi 2:16