NET

33 The musicians and Levite family leaders stayed in rooms at the sanctuary and were exempt from other duties, for day and night they had to carry out their assigned tasks.

Darby

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.

KJV

33 And these [are] the singers, chief of the fathers of the Levites, [who remaining] in the chambers [were] free: for they were employed in [that] work day and night.

KJV Bible Notes

they were imployed: Heb. upon them.

Strong's

33 And these are the singers^H7891, chief^H7218 of the fathers^H1 of the Levites^H3881, who remaining] remaining in the chambers^H3957 were free^{H6362 H6359}: for they were employed in that work^H4399 day^H3119 and night^H3915.