What does 2 Chronicles 34:12 mean?

The workers did their jobs faithfully. The supervisors were Jahath and Obadiah, Levites from Merari’s family, and Zechariah and Meshullam from the Kohathites. These Levites were skilled musicians. 2 Chronicles 34:12 - Modern Text Bible

(The project was well-organized, with trustworthy supervisors, some of whom were also musicians, showing the Levites’ broad roles.)