Ezra 2:58

And the princes said unto them, Let them live; but let them be hewers of wood and drawers of water unto all the congregation; as the princes had promised them.

Now the first inhabitants that dwelt in their possessions in their cities were, the Israelites, the priests, Levites, and the Nethinims.

And there went up some of the children of Israel, and of the priests, and the Levites, and the singers, and the porters, and the Nethinims, unto Jerusalem, in the seventh year of Artaxerxes the king.

Moreover the Nethinims dwelt in Ophel, unto the place over against the water gate toward the east, and the tower that lieth out.

All the Nethinims, and the children of Solomon's servants, were three hundred ninety and two.