2 Chronicles 35:4

And prepare yourselves ,.... To do their work in this service of the sanctuary, the passover; that they be ready to do it, and diligent in it, and perform it according to the law of God:

by the houses of your fathers, after your courses ; such of them whose turn in course it was to officiate:

according to the writing of David king of Israel, and according to the writing of Solomon his son ; who had given in writing directions in what manner their courses should be observed, see 1 Chronicles 23:1 .