I Chronicles 23:1-6 - Duties of the Levites

I Chronicles 23:7-11 - The Gershonites

I Chronicles 23:12-20 - The Kohathites

I Chronicles 23:21-32 - The Merarites

I Chronicles 24:1-19 - Duties of the Priests

I Chronicles 24:20-31 - Family Leaders among the Levites

I Chronicles 25:1-31 - Duties of the Musicians