CHAPTER 2 Dec. 30 
The Priests Admonished 
Now, you priests, this commandment is for you. 2If you will not listen, and if you will not lay it to heart, to give glory to My name, says Yahweh of Armies, then will I send the curse on you, and I will curse your blessings. Indeed, I have cursed them already, because you do not lay it to heart. 3Behold, I will rebuke your seed, and will spread dung on your faces, even the dung of your feasts; and you will be taken away with it. 4You will know that I have sent this commandment to you, that My covenant may be with Levi, says Yahweh of Armies. 5My covenant was with him of life and peace; and I gave them to him that he might be reverent toward Me; and he was reverent toward Me, and stood in awe of My name. 6The law of truth was in his mouth, and unrighteousness was not found in his lips. He walked with Me in peace and uprightness, and turned many away from iniquity. 7For the priest’s lips should keep knowledge, and they should seek the law at his mouth; for he is the messenger of Yahweh of Armies. 8But you have turned aside out of the way. You have caused many to stumble in the law. You have corrupted the covenant of Levi, says Yahweh of Armies. 9Therefore I have also made you contemptible and base before all the people, according to the way you have not kept My ways, but have had respect for persons in the law.
Judah’s Unfaithfulness 
 10Don’t we all have one father? Hasn’t one God created us? Why do we deal treacherously every man against his brother, profaning the covenant of our fathers? 11Judah has dealt treacherously, and an abomination is committed in Israel and in Jerusalem; for Judah has profaned the holiness of Yahweh which he loves, and has married the daughter of a foreign god. 12May Yahweh cut off out of the tents of Jacob the man who does this, and his descendant; may he not offer an offering to Yahweh of Armies. 13This again you do: you cover the altar of Yahweh with tears, with weeping, and with sighing, because He doesn’t regard the offering any more, neither receives it with good will at your hand. 14Yet you say, ‘Why?’ Because Yahweh has been witness between you and the wife of your youth, against whom you have dealt treacherously, though she is your companion, and the wife of your covenant. 15Did He not make you one, although He had the residue of the Spirit? Why one? He sought a godly seed. Therefore take heed to your spirit, and let no one deal treacherously against the wife of his youth. 16For I hate divorce, says Yahweh, the God of Israel, and him who covers his garment with violence! says Yahweh of Armies. Therefore take heed to your spirit, that you don’t deal treacherously.
The Judgment Day 
 17You have wearied Yahweh with your words. Yet you say, ‘How have we wearied Him?’ In that you say, ‘Everyone who does evil is good in the sight of Yahweh, and He delights in them;’ or ‘Where is the God of judgment?’. 

Commentary

2:7 The duty of the priests under the Old Covenant was to maintain true understanding of God's word, witness this to the world around them, and teach it to their brothers and sisters in Israel. Although there was a special priesthood, it was clearly God's intention that all Israel should be like priests; they were to be a "Kingdom of priests" (Ex. 19:6), and we are to be likewise (1 Pet. 2:5,9), not assuming others will care for us spiritually, but each of us taking real responsibility.
2:10,11 This may be a reference to how at the time of the restoration from Babylon, the Jews married unbelievers. This is described in the same terms used here- a breaking covenant with Him (Ezra 10:2,10; Neh. 13:27,29). Their marriage to unbelievers led them to accept the gods of their wives- and in this lay the sin of what they did. 
2:15 Make you one- a reference to how God joins together husband and wife in the course of their married life, not just on their wedding day. The intention is that our children will be “Godly”. If we are not united, not companions with each other, or if our partner is an unbeliever, it will be so much harder for us to raise Godly children.