TSK · 1 Chronicles 23:32

“Bring the tribe of Levi near, and present them before Aaron the priest, that they may serve him.

They may assist their colleagues in the tent of meeting, to attend to needs, but they must do no work. This is the way you must establish the Levites regarding their duties.”

and serves in the name of the LORD his God like his fellow Levites who stand there before the LORD.

They would spend the night in their posts all around God’s sanctuary, for they were assigned to guard it and would open it with the key every morning.