1 Chronicles 9:33

These; probably Sellum, &c., (ver. 17) though it is not certain that the chief porters presided over the singers, chap. xv., and xvi. Hebrew, "And these are the singers, chief of the families (Calmet; or fathers) of the Levites, in the chambers (of the temple) free" from all other avocations, (Haydock) that they may watch over the porters and musicians. Septuagint is clearer: (Calmet) "And these are the masters of music over the bands of Levites, observing their daily courses, because they are day and night over them in the works." (Haydock) --- The sons of Caath seem to be chiefly specified, (ver. 32) though other families sung, chap. vi. 39. --- Chambers, at a distance from their wives, to trim the lamps in the evening, and to see that none were extinguished, (Menochius) as also to teach music, &c. The Synagogues were used afterwards. (Du Hamel)