Matthew Poole and continuators on Exodus 18:5

5 And Jethro Moses father in law came with his sons, and his wife unto Moses into the wilderness, where he encamped at the mount of God.

Not at this time, but after the delivery of the law at mount Sinai, as may appear 1. because he finds them encamped, as it here follows, at the mount of God, i. e. Sinai, whither they came not till Exod. 19. 2. 2. because the laws of Sacrifices were given before his coming, as appears from ver. 12. 3. because the execution of this counsel here given about the choice of Magistrates, ver. 19. is related after the Israelites departure from Sinai, Deut. 1. 7, &c. And therefore here is a transposal in this history, which is also frequent in other places of holy Scripture.

Marginal references: chap. 3. 1.