Then Moses’ father-in-law Jethro brought a burnt offering and sacrifices to God, and Aaron came with all the elders of Israel to eat bread with Moses’ father-in-law in the presence of God.
Jewish Publication Society of America Version (JPS1917) - Exodus 18:12 >And Jethro, Moses' father-in-law, took a burnt-offering and sacrifices for God; and Aaron came, and all the elders of Israel, to eat bread with Moses' father-in-law before God.