Matthew Poole and continuators on Leviticus 22:2

2 Speak unto Aaron, and to his sons, that they separate themselves from the holy things of the children of Israel, and that they profane not my holy name in those things which they hallow unto me: I am the LORD.

To wit, when any uncleanness is upon them, as it appears from ver. 3, 4.

(i. e.) from eating of those parts of the offerings, which belong to them. Onely of the tithes they might eat in that case.

Either the children of Israel, or the Priests: For both of them did in their kinds hallow, consecrate or offer them to God. But the former seems more probable, both because they are mentioned here, and ver. 3. where they are said to hallow, &c. and because this makes the argument stronger, it ill became the Priests to profane or pollute what the people did hallow.