The title is purposely ambiguous to catch your eye.
“Moses told his father-in-law about everything the Lord had done to Pharaoh and the Egyptians for Israel’s sake and about all the hardships they had met along the way and how the Lord had saved them. 9 Jethro was delighted to hear about all the good things the Lord had done for Israel in rescuing them from the hand of the Egyptians. 10 He said, “Praise be to the Lord, who rescued you from the hand of the Egyptians and of Pharaoh, and who rescued the people from the hand of the Egyptians. 11 Now I know that the Lord is greater than all other gods, for he did this to those who had treated Israel arrogantly.” 12 Then Jethro, Moses’ father-in-law, brought a burnt offering and other sacrifices to God, and Aaron came with all the elders of Israel to eat a meal with Moses’ father-in-law in the presence of God.” (Exodus 18 v 8-12)
The verses do not reveal that Jethro built an altar for this occasion, used the one Moses had built nearby (named Yahweh-Nissi), or even that he used an existing local altar. But he did bring sacrificial offerings to God; there was an altar.
After Moses testifies to all that God had done, Jethro worships at an altar.
The testimony of what God has done always leads to worship.
There are moments in our lives when we are just overcome with worship: “The Lord has done this for me” is our testimony (Luke 1: 25). Our hearts are filled with joy:“The Lord has done great things for us, and we are filled with joy” (Psalm 126 v 3). Is this your testimony also today? Are you in effect building an altar of praise for what He has done?
“Oh, look what the Lord has done; Look what the Lord has done; He healed my body
He touched my mind; He saved me just in time; Oh, I’m gonna praise his name; Each day it’s just the same; Come on and praise Him” (Lindell Cooley 1995)
Let’s come back to the event. This place of worship in the wilderness brings a Gentile priest and the leaders of Israel together in worship, at the same meal, sitting together before God. The cross will do this fully and finally, but this event prophesies of that.
Finally, in verse 11, come those amazing words: “Now I know …” How would you finish that sentence off today? Jethro said, “Now I know that the Lord is greater than all other gods…” What do you know? What has the Lord proven to you? Importantly, now that you know, what will you do?

