Contradiction with 1 Chronicles 23:28
Differs in the tasks and organization of duties when it comes to responsibilities of positions compared with the specific actions in 2 Kings 11:9.
1 Chronicles 23:28: Because their office [was] to wait on the sons of Aaron for the service of the house of the LORD, in the courts, and in the chambers, and in the purifying of all holy things, and the work of the service of the house of God; [their...: Heb. their station was at the hand of the sons of Aaron]