Matthew Henry on Exodus 18:1-6
This incident may very well be allowed to have happened as it is placed here, before the giving of the law, and not, as some place it, in connection with what is recorded, Num 10:11, Num 10:29, etc. Sacrifices were offered before; in these mentioned here (Exo 18:12) it is observable that Jethro is said to take them, not Aaron. And as to Jethro's advising Moses to constitute judges under him, though it is intimate (Exo 18:13) that the occasion of his giving that advice was on the morrow, yet it does not follow but that Moses's settlement of that affair might be some time after, when the law was given, as it is placed, Deu 1:9. It is plain that Jethro himself would not have him make this alter…
Read the whole note in the consoleAdam Clarke on Exodus 18:2
After he had sent her back - Why Zipporah and her two sons returned to Midian, is not certainly known. From the transaction recorded Exo 4:20, Exo 4:24, it seems as if she had been alarmed at the danger to which the life of one of her sons had been exposed, and fearing worse evils, left her husband and returned to her father. It is however possible that Moses, foreseeing the troubles to which his wife and children were likely to be exposed had he taken them down to Egypt, sent them back to his father-in-law till it should please God to deliver his people.
Jethro, now finding that God had delivered them, and totally discomfited the Egyptians, their enemies, thought it proper to bring Zipporah…
Read the whole note in the consoleJohn Gill on Exodus 18:2
Then Jethro, Moses's father-in-law, took Zipporah, Moses's wife,.... When he had heard of the above things, he determined to pay Moses a visit, and congratulate him on that account; and he took his daughter, the wife of Moses, along with him, to deliver her to her husband, to share with him in his cares and troubles; as to partake with him of his honours and dignity, so to bear part with him in his burdens, so far as she was capable of:
after he had sent her back: upon his call and mission to Egypt, he took his wife and children with him; but upon an affair which occurred in the inn by the way, he sent them back again to his father-in-law, where they had remained ever since, see Exodus 4:24…