Ezra 6:18
Ver. 18. And they set the priests in their divisions, and the Levites in their courses, for the service of God which is at Jerusalem,.... All in their proper classes and courses, to do the work of the temple at Jerusalem in their turns:
as it is written in the book of Moses; see Nu 3:6, from hence it is plain the Pentateuch was not written by Ezra, as suspected by Spinosa {m}, but by Moses; see the argument of the book of Genesis. See Gill on "Ge 1:1".
{m} Tract. Theolog. Polit. c. 8. p. 163.