1 Chronicles 9:33
These are the singers, heads of fathers' [houses] of the Levites, [who lived] in the rooms [and were] free [from other service]; for they were employed in their work day and night.
1 Chronicles 6:31-33
These are they whom David set over the service of song in the house of Yahweh, after that the ark had rest.
1 Chronicles 25:1-31
Moreover, David and the captains of the army set apart for the service certain of the sons of Asaph, and of Heman, and of Jeduthun, who should prophesy with harps, with stringed instruments, and with cymbals: and the number of those who did the work according to their service was:
1 Chronicles 15:16-22
David spoke to the chief of the Levites to appoint their brothers the singers, with instruments of music, stringed instruments and harps and cymbals, sounding aloud and lifting up the voice with joy.
1 Chronicles 16:4-6
He appointed certain of the Levites to minister before the ark of Yahweh, and to celebrate and to thank and praise Yahweh, the God of Israel:
Ezra 7:24
Also we inform you, that touching any of the priests and Levites, the singers, porters, Nethinim, or servants of this house of God, it shall not be lawful to impose tribute, custom, or toll, on them.
Nehemiah 11:17
and Mattaniah the son of Mica, the son of Zabdi, the son of Asaph, who was the chief to begin the thanksgiving in prayer, and Bakbukiah, the second among his brothers; and Abda the son of Shammua, the son of Galal, the son of Jeduthun.
Nehemiah 11:22-23
The overseer also of the Levites at Jerusalem was Uzzi the son of Bani, the son of Hashabiah, the son of Mattaniah, the son of Mica, of the sons of Asaph, the singers, over the business of the house of God.
Psalm 134:1-2
Look! Praise Yahweh, all you servants of Yahweh, who stand by night in Yahweh's house!
Psalm 135:1-3
Praise Yah! Praise the name of Yahweh! Praise him, you servants of Yahweh,