Malachi 2:9

Therefore have I made you contemptible - They had said in their hearts Malachi 1:7, “The table of the Lord is contemptible.” So God would requite them “measure for measure.” Yet not only so, but in their office as judges, against the repeated protestations in the law Leviticus 19:15, “Thou shalt not respect the person of the poor, nor honor the person of the mighty, in righteousness shalt thou judge thy neighbor Deuteronomy 1:17, ye shall not respect persons in judgment Deuteronomy 16:19, thou shall not wrest judgment,” he says,

Ye have accepted persons in the law - You have interpreted the law differently for rich and poor, or have put it in force against the poor, not against the rich. It would include actual bribery; but there are many more direct offences against equal justice. How differently is the like offence against the eighth commandment visited upon the poor who have real temptation to it, and the rich who have none, but the lust of the eyes!

Crows he condones, vexes the simple dove - That contempt which they cast upon God and His law, by wresting it out of respect to persons, that so they might gain favor and respect from them, so honoring them more than Him, and seeking to please them more than Him, will He cast back on them making them contemptible even in the eyes of those, from whom they thought by that means to find respect.