1 Chronicles 9:21-23

Young's Literal Translation

²¹ Zechariah son of Meshelemiah [is] gatekeeper at the opening of the tent of meeting.

²² All of those who are chosen for gatekeepers at the thresholds [are] two hundred and twelve; they [are] in their villages, by their genealogy; they whom David and Samuel the seer appointed in their office.

²³ And they and their sons [are] over the gates of the house of Jehovah, even of the house of the tent, by watches.