Jamieson, Fausset and Brown on Ezekiel 46:19-24

19-24. Due regard is to be had for the sanctity of the officiating priests' food, by cooking courts being provided close to their chambers. One set of apartments for cooking was to be at the corners of the inner court, reserved for the flesh of the sin offerings, to be eaten only by the priests whose perquisite it was (Le 6:25; 7:7), before coming forth to mingle again with the people; another set at the corners of the outer court, for cooking the flesh of the peace offerings, of which the people partook along with the priests. All this implies that no longer are the common and unclean to be confounded with the sacred and divine, but that in even the least things, as eating and drinking, the glory of God is to be the aim (1Co 10:31).