Leviticus 22:8

That which dieth of itself, or is torn with beasts ,.... Whether fowls or beasts, and even clean ones, which, had they been killed in a proper manner, were fit to cut, but dying of themselves, or torn to pieces by other birds or beasts of prey, might not, see Ezekiel 44:31 ,

he shall not eat, to defile himself therewith ; being impure food, at least in a ceremonial sense, and not fit to be eaten; these things were forbid a common Israelite, and much less might a priest eat of them, see Leviticus 17:15 ,

I am the Lord ; who enjoin this, and expect to be obeyed.