2 Kings 23:9 - Clarke's commentary and critical notes on the Bible

Nevertheless the priests of the high places came not up to the altar of the LORD in Jerusalem, but they did eat of the unleavened bread among their brethren. The priests of the high places came not up - As these priests had offered sacrifices on the high places, though it was to the true God, yet they were not thought proper to be employed immediately about the temple; but as they were acknowledged to belong to the priesthood, they had a right to their support; therefore a portion of the tithes, offerings, and unleavened bread, shew-bread, etc., was appointed to them for their support. Thus they were treated as priests who had some infirmity which rendered it improper for them to minister at the altar. See Leviticus 21:17, etc., and particularly Leviticus 21:22, Leviticus 21:23.