1 Chronicles 9:33
These are the singers - ancient heads among the Levites divided by chambers, for they had to do both day and night.
1 Chronicles 6:31-33
These be they which David set for to sing in the house of the LORD, after that the Ark had rest.
1 Chronicles 25:1-31
And David and the captains of the host appointed out to do service, the sons of Asaph of Heman and Jeduthun, which did prophesy with harps, psalteries and cymbals. And they were numbered unto the work according to their office.
1 Chronicles 15:16-22
And David spake to the chief heads of the Levites, that they should appoint of their brethren to sing with instruments of music: psalteries, harps and cymbals that sounded, and to sing on high with Joyfulness.
1 Chronicles 16:4-6
And he appointed certain of the Levites to minister before the LORD, and to repeat, and to thank and praise the LORD God of Israel:
Ezra 7:24
And known be it unto you, that ye shall have no authority to require taxing and custom, yearly rents upon any of the priests, Levites, singers, porters, Nethinims, and ministers in the house of this God.
Nehemiah 11:17
And Mattaniah the son of Mica, the son of Zabdi, the son of Asaph, which was the principal to begin the thanksgiving unto prayer. And Bakbukiah the second among his brethren, and Abda the son of Shammua, the son of Galal, the son of Jeduthun.
Nehemiah 11:22-23
The overseer 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 children of Asaph, there were singers about the business in the house of God:
Psalm 134:1-2
{A song of the stairs} Behold now, praise the LORD, all ye servants of the LORD, ye that by night stand in the house of the LORD.
Psalm 135:1-3
{Praise the Everlasting} O praise the name of the LORD! Praise it, O ye servants of the LORD;