For this cause the Lord has said, If you will come back, then I will again let you take your place before me; and if you give out what is of value and not that which has no value, you will be as my mouth: let them come back to you, but do not go back to them.
And they are to make clear to my people the division between what is holy and what is common, and to give them the knowledge of what is clean and what is unclean.
This is the law about the leper's disease in the thread of wool or linen material, in clothing or in anything of skin, saying how it is to be judged clean or unclean.
In connection with the leper's disease, take care to keep and do every detail of the teaching of the priests, the Levites: as I gave them orders, so you are to do.