C. F. Keil and Franz Delitzsch on 2 Chronicles 29:10-11

2Ch 29:10-11

To turn away this anger of God, Hezekiah wishes to make a covenant with the Lord, i.e., to renew the covenant with Jahve by restoring His worship (לבבי עם as in 2Ch 6:7; 2Ch 9:1; 1Ch 28:2, etc.), and therefore calls upon the Levites not to neglect the performance of their duty. בּני he calls the Levites, addressing them in kindly language; cf. Pro 1:8, etc. תּשּׁלוּ in Niph. occurs only here, and denotes to avoid a thing from carelessness or laziness, - from שׁלה, to draw forth; Job 27:8. On 2Ch 29:11, cf. Deu 10:8; 1Ch 23:13.