Charles Ellicott Commentary Ezekiel 46:20

"And he said unto me, This is the place where the priests shall boil the trespass-offering and the sin-offering, [and] where they shall bake the meal-offering; that they bring them not forth into the outer court, to sanctify the people." — Ezekiel 46:20 (ASV)

Shall boil ... shall bake.— The flesh of all sacrifices except the Passover was by the law required to be boiled, and the unbloody meat offering, when not already cooked, was to be baked.

Bear them not out into the utter court.—In one sense the priestly chambers and also these cooking rooms were themselves in the outer court; but as already remarked, these, with the walk that led to them, although within the enclosure of the outer, were considered as adjuncts of, and therefore belonging to, the inner court. The reason given for not carrying the flesh of the sin and trespass offering into the outer court is so that they would not thereby sanctify the people, and the same reason is given in Ezekiel 44:19 for not allowing the priests’ garments to come into the outer court.

Under the law all those offerings which it was the duty of the priests to consume are called most holy, and whoever touched them or the sacred vessels of the sanctuary became holy in the sense of set apart to God (Leviticus 6:18; Exodus 30:29). The object of the command is therefore to prevent that ceremonial sanctification of the people which would interfere with their ordinary life.