Leviticus 22:2

That they separate themselves, to wit, when any uncleanness is upon them, as it appears from Leviticus 22:3,4. From the holy things, i.e. from eating of those parts of the offerings which belong to them. Only of the tithes they might eat in that case. Which they hallow; 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 were mentioned here and Leviticus 22:3, 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.