TSK · 1 Chronicles 18:17

Benaiah son of Jehoiada supervised the Kerithites and Pelethites; and David’s sons were priests.

So Joab’s men, accompanied by the Kerethites, the Pelethites, and all the warriors, left Jerusalem to pursue Sheba son of Bicri.

From the three he was given honor and he became their officer, even though he was not one of the three.

The king sent with him Zadok the priest, Nathan the prophet, Benaiah son of Jehoiada, the Kerethites, and the Pelethites and they put him on the king’s mule.

Their job was to help Aaron’s descendants in the service of the LORD’s temple. They were to take care of the courtyards, the rooms, ceremonial purification of all holy items, and other jobs related to the service of God’s temple.