2 Chronicles 23:18

23:18 Jehoiada then assigned the duties of the Lord’s temple to the priests, the Levites whom David had assigned to the Lord’s temple. They were responsible for offering burnt sacrifices to the Lord with joy and music, according to ¹  the law of Moses and the edict of David.

2 Chronicles 30:21

30:21 The Israelites who were in Jerusalem observed the Feast of Unleavened Bread for seven days with great joy. The Levites and priests were praising the Lord every day with all their might. ² 

[23:18]  ¹ tn Heb “as it is written in.”

[30:21]  ² tn Heb “and they were praising the Lord day by day, the Levites and the priests with instruments of strength to the Lord.” The phrase בִּכְלֵי־עֹז (bikhley-’oz, “with instruments of strength”) might refer to loud sounding musical instruments (NASB “with loud instruments”; NEB “with unrestrained fervour”). The present translation assumes an emendation to בְּכָל־עֹז (bÿkhol-’oz, “with all strength”); see 1 Chr 13:8, as well as HALOT 805 s.v. I עֹז and BDB 739 s.v. עֹז).