Malachi 2:8-9

8 ^But you have turned aside out of the way; you have caused many to stumble by your instruction [in the law]; you have corrupted the covenant of Levi [with Me], says the Lord of hosts.

9 ^Therefore have I also made you despised and abased before all the people, inasmuch as you have not kept My ways but have shown favoritism to persons in your administration of the law [of God].