John Gill Commentary Leviticus 19:8

"but every one that eateth it shall bear his iniquity, because he hath profaned the holy thing of Jehovah: and that soul shall be cut off from his people." — Leviticus 19:8 (ASV)

Therefore [everyone] that eateth it shall bear his iniquity ,
&c.] Be chargeable with sin, be pronounced guilty, and endure the punishment, which is cutting off, (Leviticus 7:20):

because he has profaned the hallowed thing of the Lord ;
the flesh of the peace offerings, by keeping it longer than the fixed time for it, when it was liable to corruption and putrefaction; for after the inwards and the fat of them were offered, as Aben Ezra says, the flesh was holy, and to be eaten as an holy thing, and within the time the law required, or otherwise it was profaned and polluted:

and that soul shall be cut off from among his people ;
be deprived of his civil and religious privileges, or be punished by the hand of the civil magistrate, or else by the immediate hand of God.