2 Kings 23:9

Nevertheless, the priests of the high places came not up to the
altar of the Lord at Jerusalem
To sacrifice there, as the Targum; though they were removed from the high places, they were not admitted to officiate at the altar of the Lord, having offered in forbidden places:

but they did eat of the unleavened bread with their brethren;
the priests that were pure, as the sons of Zadok; though they might not offer sacrifices, they were allowed to partake of the holy things with the priests, as the meat offerings made of flour unleavened, ( Leviticus 2:4 Leviticus 2:5 ) which are here meant, and put for all the rest on which the priests lived, see ( Ezekiel 44:10-15 ) .