'Gatekeepers' in the Bible

According to the ordinances of his father David, he appointed the divisions of the priests over their service, of the Levites over their responsibilities to offer praise and to minister before the priests following the daily requirement, and of the gatekeepers by their divisions with respect to each gate, for this had been the command of David, the man of God.

This is what you are to do: a third of you, priests and Levites who are coming on duty on the Sabbath, are to be gatekeepers.

He stationed gatekeepers at the gates of the Lord’s temple so that nothing unclean could enter for any reason.

They approached Hilkiah the high priest and delivered to him the money that had been brought into God's Temple that the descendants of Levi and gatekeepers had collected from Manasseh, Ephraim, the surviving Israelis, Judah, Benjamin, and the inhabitants of Jerusalem.

They were also over the porters and were supervising all those doing the work task by task. Some of the Levites were secretaries, officers, and gatekeepers.

The singers, the descendants of Asaph, were at their stations according to the command of David, Asaph, Heman, and Jeduthun the king’s seer. Also, the gatekeepers were at each gate. None of them left their tasks because their Levite brothers had made preparations for them.