Leviticus 22:10
No stranger shall eat of the holy thing; a guest of the priest or a hired servant shall not eat of the holy thing.
1 Samuel 21:6
So the priest gave him the sacred bread, for there was no bread there but the showbread that had been taken from before the LORD to put hot bread in the day when it was taken away.
Matthew 12:4
how he entered into the house of God and ate the showbread, which was not lawful for him to eat, neither for those who were with him, but only for the priests?
Exodus 29:33
And they shall eat those things with which they were reconciled, to fill their hands to be sanctified; but a stranger shall not eat thereof because they are holiness.