Moses' father-in-law, Jethro, was a priest of the people of Midian. Why would he make sacrifices to God?
The Midrash considers this act on his part to be an act of conversion. Do you agree?
(5) And Jethro, Moses’father-in-law, came with his sons and his wife unto Moses into the wilderness where he was encamped, at the mount of God; (6) and he said unto Moses: ‘I thy father-in-law Jethro am coming unto thee, and thy wife, and her two sons with her.’ (7) And Moses went out to meet his father-in-law, and bowed down and kissed him; and they asked each other of their welfare; and they came into the tent. (8) And Moses told his father-in-law all that the ETERNAL had done unto Pharaoh and to the Egyptians for Israel’s sake, all the travail that had come upon them by the way, and how the ETERNAL delivered them. (9) And Jethro rejoiced for all the goodness which the ETERNAL had done to Israel, in that God had delivered them out of the hand of the Egyptians. (10) And Jethro said: ‘Blessed be the ETERNAL, who hath delivered you out of the hand of the Egyptians, and out of the hand of Pharaoh; who hath delivered the (11) Now I know that the ETERNAL is greater than all gods; yea, for that they dealt proudly against them.’ (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.