Lev 22 describes the correct handling of those sacrifices in which the priest gets a share. It has rules for who, how, and when it can be eaten.
Verses 10-11 strike me as interesting. No one outside of the priestly families can take part. The holiest man in Israel cannot eat this food. But the lowest slave can.
Those who have been bought with a price have a share in the priest’s things.
We have been bought with a price, and we now have a share in our great Priest’s things.
We once were slaves to sin, but now we are slaves to righteousness. And though we are rightfully called slaves – even if we are slaves by choice – God has also raised us up to be called sons and daughters.
Now we who were called "not my people" are not only His people but His family, "heirs of God and co-heirs with Christ."
"Oh, the depth of the riches of the wisdom and knowledge of God!
How unsearchable his judgments,
and his paths beyond tracing out!"