1 Chronicles 9:19-27

And Shallum the son of Kore, the son of Ebiasaph, the son of Korah, and his brethren, of his father’s house, the Korahites, were over the work of the service, keepers of the thresholds of the tent: and their fathers had been over the camp of Jehovah, keepers of the entry. And Phinehas the son of Eleazar was ruler over them in time past, and Jehovah was with him. Zechariah the son of Meshelemiah was porter of the door of the tent of meeting. All these that were chosen to be porters in the thresholds were two hundred and twelve. These were reckoned by genealogy in their villages, whom David and Samuel the seer did ordain in their office of trust. So they and their children had the oversight of the gates of the house of Jehovah, even the house of the tent, by wards. On the four sides were the porters, toward the east, west, north, and south. And their brethren, in their villages, were to come in every seven days from time to time to be with them: for the four chief porters, who were Levites, were in an office of trust, and were over the chambers and over the treasuries in the house of God. And they lodged round about the house of God, because the charge thereof was upon them; and to them pertained the opening thereof morning by morning.