I Chronicles 9:29

And these are the singers, chief of the fathers of the Levites,.... Others of them were employed in singing, and were masters of the song, and presided in that service, see Ch1 6:31 who remaining in the chambers were free; from all other work and service; and there they abode, even in the chambers of the temple, that they might be near to perform their work, and not be defiled, and made unfit for it: for they were employed in that work day and night; some or other of them, either in composing or singing psalms and hymns, or teaching others how to sing them.

This chapter intimates to us that one end of recording all these genealogies was to direct the Jews, now that they had returned out of captivity, with whom to incorporate and where to reside; for here we have an account of those who first took possession of Jerusalem after their return from Babylon, and began the rebuilding of it upon the old foundation. I. The Israelites (Ch1 9:2-9). II. The priests (Ch1 9:10-13). III. The Levites and other Nethinim (Ch1 9:14-26). IV. Here is the particular charge of some of the priests and Levites (Ch1 9:27-34). V. A repetition of the genealogy of king Saul (Ch1 9:35-44).