And the singers the sons of Asaph were in their place, according to the commandment of David, and Asaph, and Heman, and Jeduthun the king's seer; and the porters waited at every gate; they might not depart from their service; for their brethren the Levites prepared for them.
And the singers ... were in their place. While the priests and people were so much engaged, the choir were not idle. They had to sing certain Psalms-namely, Psalms 113:1-9 to Psalms 118:1-29 inclusive-once, twice, and even a third time, during the continuance of each company of offerers. Since they could not leave their posts, therefore-for the singing was resumed as every fresh company entered-the Levites prepared for them also; because the various bands relieved each other in turns, and while the general choir were doing duty, a portion of the tuneful brethren, relieved for a time, partook of the viands that were brought them.