1 Chronicles 9:18

and [he waited] hitherto in the king's gate eastward: these [are] the gates of the companies of the sons of Levi.

Who hitherto waited in the king’s gate eastward: they were porters in the companies of the children of Levi.

who previously served in the king’s gate eastward. They were the gatekeepers for the camp of the children of Levi.