'Tasks' in the Bible

As his father David had decreed, Solomon appointed the divisions of the priests to do their assigned tasks, the Levitical orders to lead worship and help the priests with their daily tasks, and the divisions of the gatekeepers to serve at their assigned gates. This was what David the man of God had ordered.

Hezekiah appointed the divisions of the priests and Levites to do their assigned tasks -- to offer burnt sacrifices and present offerings and to serve, give thanks, and offer praise in the gates of the Lord's sanctuary.