Leviticus 22:10

Overview - Leviticus 22
The priests in their uncleanness must abstain from the holy things.
How they shall be cleansed.
10 Who of the priest's house may eat of the holy things.
17 The sacrifices must be without blemish.
26 The age of the sacrifice.
29 The law of eating the sacrifice of thanksgiving.
Treasury of Scripture Knowledge

Leviticus 22:10  (King James Version)
There shall no stranger eat of the holy thing: a sojourner of the priest, or an hired servant, shall not eat of the holy thing.

The word {zar,} a stranger, does not mean one of another nation, a foreigner, which is expressed by {hechar,} but one who is not of the seed of Aaron, or does not belong to his family.
1 Samuel 21:6 ; Matthew 12:4