Malachi 2:4-7

Then you will know that I am giving you this command so my agreement with Levi will continue,” says the LORD All-Powerful. “My agreement for priests was with the tribe of Levi. I promised them life and peace so they would honor me. And they did honor me and fear me. They taught the true teachings and spoke no lies. With peace and honesty they did what I said they should do, and they kept many people from sinning. “A priest should teach what he knows, and people should learn the teachings from him, because he is the messenger of the LORD All-Powerful.