'Door keepers' in the Bible

The sons of the door-keepers, The sons of Shallum, the sons of Ater, the sons of Talmon, the sons of Akkub, the sons of Hatita, the sons of Shobai, - in all, a hundred and thirty-nine.

So the priests and the Levites, and some of the people, and the singers and the doorkeepers and the Nethinim, took up their abode, in their cities, - and, all Israel, in their cities.

So then there came up some of the sons of Israel, and some of the priests and the Levites and the singers and the doorkeepers and the Nethinim, unto Jerusalem, - in the seventh year of Artaxerxes the king.

And, you, we do certify, that, as touching any of the priests or the Levites, the singers, the doorkeepers, the Nethinim, or the servitors of this house of God, tribute, excise or toll, shall it not be competent to impose upon them.

And, of the singers, Eliashib. And, of the doorkeepers, Shallum and Telem and Uri.