1 Chronicles 9:22-24

22All these chosen to be doorkeepers at the thresholds were two hundred and twelve. These were registered by genealogy according to their villages: David and Samuel the seer had instituted them in their trust.

23And they and their sons were at the gates of the house of Jehovah, the house of the tent, to keep watch there.

24At the four quarters were the doorkeepers, toward the east, west, north, and south.