Ezra
1 Chronicles 9:34ESV·traditional attribution

These were heads of fathers’ houses of the Levites, according to their generations, leaders. These lived in Jerusalem.

Matthew Henry Presbyterian @wholebiblehenry

We have here a further account of the good posture which the affairs of religion were put into immediately upon the return of the people out of Babylon. They had smarted for their former neglect of ordinances and under the late want of ordinances.

Commenting on 1 Chronicles 9:14-34

Keil & Delitzsch Lutheran @keilanddelitzsch

1Ch 9:33-34 1Ch 9:33, 1Ch 9:34 contain subscriptions to the section vv. 14-32. Since the enumeration of the Levites dwelling in Jerusalem in 1Ch 9:14-16 began with the Levitic singer families, so here we find that the singers are mentioned in the first subscription, “these are the singers, heads of fathers'-houses of the Levites,” with an additional remark as to their service: “In the cells...

Commenting on 1 Chronicles 9:33-34