If any of it is eaten on the third day, it is tainted and will not be accepted.
Moses is ordered to deliver the summary of the laws to all the congregation of the children of Israel (Lev 19:2); not to Aaron and his sons only, but to all the people, for they were all concerned to know their duty. Even in the darker ages of the law, that religion could not be of God which boasted of ignorance as its mother.
Commenting on Leviticus 19:1-10
And if it be eaten at all on the third day,.... Or "in eating be eaten" (k) any of it be eaten, the least bit of it: it is abominable; it is as any common thing, as if it was no sacrifice; yea, as if it was corrupt and putrefied flesh; nay, as what is abominable to God: and therefore it follows: it shall not...
And if it be eaten at all on the third day, it [is] abominable; it shall not be accepted. (c) To wit, of God.