1 Chronicles 9:22-24

22There were 212 guards for the gates of the temple. Their names were written in the lists of their ancestors, for each village where they lived. King David and the prophet Samuel had chosen their ancestors to do this important work as guards.

23Those men and their descendants had to stand as guards at the gates of the Lord's Holy Place, which had been a special tent.

24The guards stood on the four sides of the Lord's house: the east, west, north and south sides.