1 Chronicles 9:21-27

²¹Zechariah the son of Meshelemiah was gatekeeper of the entrance of the tent of meeting. ²²Those who were chosen to be gatekeepers at the thresholds were 212 in all. They were registered by genealogy in their settlements, those whom David and Samuel the seer appointed in their official capacity. ²³So they and their sons were in charge of the gates of the house of the Lord, the house of the tent, in their divisions of service. ²⁴The gatekeepers were on the four sides, to the east, west, north, and south. ²⁵Their relatives in their settlements were to come in every seven days from time to time to be with them; ²⁶for the four chief gatekeepers, who were Levites, served in an official capacity, and were in charge of the chambers and in charge of the treasuries in the house of God. ²⁷They spent the night around the house of God, because the watch was committed to them; and they were in charge of opening it morning by morning.