and the name of the other, Eliezer (for he said, “The God of my father was my help, and delivered me from the sword of Pharaoh”).
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.
Commenting on Exodus 18:1-6
And the name of the other was Eliezer,.... Who seems to be his second son, and was that which was circumcised by Zipporah at the inn, and about which there was such a stir, Exo 4:24, and signifies "my God is help", or, his helper: for the God of my father, said he, was mine help, and delivered me from the sword of Pharaoh; who...
Exo 18:1-5 The Amalekites had met Israel with hostility, as the prototype of the heathen who would strive against the people and kingdom of God. But Jethro, the Midianitish priest, appeared immediately after in the camp of Israel, not only as Moses’ father-in-law, to bring back his wife and children, but also with a joyful acknowledgement of all that Jehovah had done to the Israelites...
Commenting on Exodus 18:1-5