1 Chronicles 9:33
And these were the singers, chief of the fathers of the Levites in the chambers, they were free of duty, for they were employed in that work day and night.
1 Chronicles 6:31-33
And these are the men whom David set over the service of song in the house of Jehovah, after the ark had rest.
1 Chronicles 25:1-31
And David and the army commanders separated to the service those of the sons of Asaph, and of Heman, and of Jeduthun, who were prophets with lyres and with cymbals. And the number of the workmen according to their service was:
1 Chronicles 15:16-22
And David spoke to the chief of the Levites to choose their brothers to be the singers with instruments of music, lyres, and harps, and cymbals, sounding by lifting the voice with joy.
1 Chronicles 16:4-6
And he appointed certain of the Levites to minister before the ark of Jehovah, and to record, and to thank and praise Jehovah, the God of Israel:
Ezra 7:24
Also, we notify you, that in regard to any of the priests and the Levites, singers, gatekeepers, temple slaves, or ministers of this house of God, it shall not be lawful to impose toll, taxes, or custom on them.
Nehemiah 11:17
And Mattaniah the son of Micha, the son of Zabdi, the son of Asaph, was the leader to begin the thanksgiving in prayer. And Bakbukiah was second among his brothers, and then 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 Micha. Of the sons of Asaph, the singers were over the business of the house of God.
Psalm 134:1-2
A Song of degrees. Behold, bless Jehovah, all servants of Jehovah, who stand by night in the house of Jehovah.
Psalm 135:1-3
Praise Jehovah! Praise the name of Jehovah; praise Him, servants of Jehovah.