Leviticus 10:6 ERV

[6] Then Moses spoke to Aaron and his other sons Eleazar and Ithamar. He said, "Don't show any sadness! Don't tear your clothes or mess up your hair! If you do anything to show your sadness, you will be killed, and the Lord will show his anger against everyone. But let all the other people of Israel, your relatives, cry for those the LORD destroyed with fire.