And these are the singers, heads of fathers of the Levites, [who dwelt] in the chambers [and were] free [from other service], for they were employed in their work day and night.
At that time LORD set apart the tribe of Levi, to bear the ark of the covenant of LORD, to stand before LORD to minister to him, and to bless in his name, to this day.
Because of this they are before the throne of God, and they serve him day and night in his temple. And he who sits on the throne will dwell among them.
And stand in the holy place according to the divisions of the fathers' houses of your brothers the sons of the people, and the portion of a fathers' house of the Levites.