1 Chronicles 9:33
And these were the singers, chief fathers of the Levites, who were in the chambers free from service; for they were employed day and night.
1 Chronicles 6:31-33
And these are they whom David set over the service of song in the house of Jehovah after that the ark was in rest.
1 Chronicles 25:1-31
And David and the captains of the host separated for the service those of the sons of Asaph and of Heman and of Jeduthun who were to prophesy with harps and lutes and cymbals; and the number of the men employed according to their service was:
1 Chronicles 15:16-22
And David spoke to the chief of the Levites to appoint their brethren, the singers, with instruments of music, lutes, and harps, and cymbals, that they should sound aloud, lifting up the voice with joy.
1 Chronicles 16:4-6
And he appointed certain of the Levites to do the service before the ark of Jehovah, and to celebrate, and to thank and praise Jehovah the God of Israel:
Ezra 7:24
Also we inform you, as regards all the priests and Levites, singers, doorkeepers, Nethinim, and ministers of this house of God, it shall not be lawful to impose tribute, tax, and toll upon them.
Nehemiah 11:17
and Mattaniah the son of Mica, the son of Zabdi, the son of Asaph, who was the principal to begin the thanksgiving in 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
And 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 sons of Asaph, the singers, for the work of the house of God.
Psalm 134:1-2
{A Song of degrees.} Behold, bless Jehovah, all ye servants of Jehovah, who by night stand in the house of Jehovah.
Psalm 135:1-3
Hallelujah! Praise the name of Jehovah; praise, ye servants of Jehovah,