Exodus 18:12

12. Burnt offering and sacrifices for God Jethro, the venerable priest, according to ancient usages of patriarchal worship, presides and officiates at this sacrifice and festival. The Levitical ritual and institutions had not yet been established, and no one but Jethro could, on that occasion, have so appropriately acted as priest. This great patriarch, with an intensified faith in Jehovah as the only true God, (Exodus 18:10-11,) worships in thorough accord with Moses and Aaron and all the elders of Israel. All these probably assisted in some form at this sacrifice. Comp. Genesis 31:46-54. “This passage is of great importance in its bearings upon the relation between the Israelites and their congeners, and upon the state of religion among the descendants of Abraham.” Speaker’s Commentary.