1 Chronicles 9:19-27

Shallum the son of Kore, son of Ebiasaph, son of Korah, and his kinsmen of his fathers’ house, the Korahites, were in charge of the work of the service, keepers of the thresholds of the tent, as their fathers had been in charge of the camp of the LORD, keepers of the entrance. And Phinehas the son of Eleazar was the chief officer over them in time past; the LORD was with him. Zechariah the son of Meshelemiah was gatekeeper at the entrance of the tent of meeting. All these, who were chosen as gatekeepers at the thresholds, were 212. They were enrolled by genealogies in their villages. David and Samuel the seer established them in their office of trust. So they and their sons were in charge of the gates of the house of the LORD, that is, the house of the tent, as guards. The gatekeepers were on the four sides, east, west, north, and south. And their kinsmen who were in their villages were obligated to come in every seven days, in turn, to be with these, for the four chief gatekeepers, who were Levites, were entrusted to be over the chambers and the treasures of the house of God. And they lodged around the house of God, for on them lay the duty of watching, and they had charge of opening it every morning.