This is the thing that you shall do: a third part of you, who come in on the Shabbat, of the Kohanim and of the Levites, shall be porters of the thresholds;
So they came and called to the porter of the city; and they told them, saying, We came to the camp of the Syrians, and, behold, there was no man there, neither voice of man, but the horses tied, and the donkeys tied, and the tents as they were.
For their office was to wait on the sons of Aharon for the service of the house of the LORD, in the courts, and in the chambers, and in the purifying of all holy things, even the work of the service of the house of God;
and a third part shall be at the king's house; and a third part at the gate of the foundation: and all the people shall be in the courts of the house of the LORD.