This procedure will determine whether a person or object is ceremonially clean or unclean.“ These are the instructions regarding skin diseases and mildew.”
This is so that you can tell the difference between what is holy and what is not. You must be able to tell the difference between what is‘ clean’ and what is not.
So the Lord says to Jeremiah,“ If you turn away from your sins, I will heal you. And then you will be able to serve me. Speak words that are worthy, not worthless. Then you will be speaking for me. Let these people turn to you. But you must not turn to them.
The priests must teach my people the difference between what is holy and what is not. They must show them how to tell the difference between what is‘ clean’ and what is not.
What about skin diseases? Be very careful to do exactly what the priests, who are Levites, tell you to do. You must be careful to obey the commands I’ve given them.