Matthew Poole and continuators on Leviticus 21:6

6 They shall be holy unto their God , and not profane the Name of their God : for the offerings of the LORD made by fire, and the bread of their God they do offer: therefore they shall be holy.

Devoted to Gods service and always prepared and fit for it, and therefore shall keep themselves, as far as they can from all defilement, which makes them unmeet for their masters use.

Which they especially bear: they shall not disparage the service of God by making it give place to such sleight occasions.

(i. e.) the shew-bread: or rather, all the other offerings, besides burnt-offerings: which are called bread, either because bread is commonly put for all food, as below ver. 17, 21. or, because God is satisfied and refreshed with these offerings, as a man is with his bread: or rather, because they or part of them are the bread or food of the Priests, and are here called bread of their God, either objectively because they were offered to God, or efficiently, because they were given by God to the Priests. And these are called bread in opposition to the burnt-offerings, which being wholly consumed gave no food to the Priests. Or, the offerings made by fire are here put Synecdochically for all the rest▪ the most eminent kind for all, which are here called bread, because devoured by fire to the honour of God. For the particle and is not in the Hebrew, and may be omitted.

Marginal references: Heb. holiness.