Malachi 2:4

So shall you know that I have sent this command to you, that my covenant with Levi may stand, says the Lord of hosts .

And you will know that I have sent you this warning so that my covenant with Levi may continue,” says the Lord Almighty.

And ye shall know that I have sent this commandment unto you, that my covenant might be with Levi, saith the Lord of hosts.