פירוש על מלכים ב 23:9

Were not permitted to ascend. The priests who burned incense on the high places to idols, were not permitted to ascend anymore to serve on the Altar of Adonoy.

They would eat matzohs. I.e., but in this thing they would not be disqualified from their priesthood, that they are allowed to eat hallowed things. They are like blemished [kohanim] and they share and eat [of the sacrifice], but they may not offer [sacrifices].⁸See Maseches Menachos 109a.

They would eat matzohs. Meal-offerings,⁹All meal offerings were prepared in an unleavened state [=matzohs]. See Vayikra 2:10-11. and similarly, all hallowed things.