Context & Key Themes
Exodus 15 opens with the Song of Moses — the exultant hymn Israel sings on the far shore of the sea, one of the oldest poems in Scripture. It is followed almost immediately by the first complaint in the wilderness — bitter water at Marah — and God’s first provision in response. The chapter captures the full arc of the human heart: soaring praise and almost immediate grumbling. The themes are worship as the right response to salvation, the brevity of spiritual highs, and God’s patience with the people He has just delivered.
Key Verses
“The Lord is my strength and my song, and he has become my salvation; this is my God, and I will praise him, my father’s God, and I will exalt him.” — Exodus 15:2
“He said, ‘If you will diligently listen to the voice of the Lord your God, and do that which is right in his eyes, and give ear to his commandments and keep all his statutes, I will put none of the diseases on you that I put on the Egyptians, for I am the Lord, your healer.'” — Exodus 15:26
Summary
Moses and the people of Israel sing to the Lord: I will sing to the Lord, for he has triumphed gloriously; the horse and his rider he has thrown into the sea. The Lord is my strength and my song and has become my salvation. He is my God and I will praise him, my father’s God and I will exalt him. The Lord is a man of war. Pharaoh’s chariots and his host he cast into the sea. The enemy said: I will pursue, I will overtake, I will divide the spoil. You blew with your wind and the sea covered them. They sank like lead in the mighty waters. Who is like you, O Lord, among the gods? Who is like you, majestic in holiness, awesome in glorious deeds, doing wonders? You stretched out your right hand and the earth swallowed them. You will bring your people in and plant them on the mountain of your inheritance. The Lord will reign forever and ever.
Miriam the prophetess, Aaron’s sister, takes a tambourine and leads all the women in dancing and singing the refrain: sing to the Lord, for he has triumphed gloriously; the horse and his rider he has thrown into the sea.
Moses leads Israel into the wilderness of Shur. They travel three days in the wilderness and find no water. They come to Marah but cannot drink the water there because it is bitter. The people grumble against Moses: what shall we drink? Moses cries to the Lord. The Lord shows him a log and he throws it into the water and the water becomes sweet. There God makes a statute and rule and tests them: if you will diligently listen to the Lord your God and do what is right in his eyes and give ear to his commandments and keep his statutes, I will put none of the diseases on you that I put on the Egyptians, for I am the Lord your healer. They come to Elim where there are twelve springs and seventy palm trees, and they encamp there by the water.
Reflection
The Song of Moses is the sound of a people who have just experienced salvation they could not have engineered and cannot fully comprehend. It is praise at its most elemental — not theological argument or careful doctrine, but the overflow of people who saw the horse and rider thrown into the sea and have to do something with what they witnessed. Miriam and the women answer with tambourines. The right response to overwhelming deliverance is not analysis. It is song.
Three days. Three days from the far shore of the sea to the first complaint. The people who were singing on the shore are now grumbling at Marah because the water is bitter. This is not a failure unique to ancient Israel. It is a precise description of the human capacity to hold onto the memory of grace. The spectacular recedes quickly in the presence of immediate discomfort. The sea was three days ago. Today there is no water. Today feels more real than three days ago.
God’s response is not rebuke. He shows Moses a log, Moses throws it in, the water becomes sweet. And then God offers the covenant of healing — I am the Lord your healer. The God who opened the sea is also the God who sweetens bitter water. The same power that demolished Pharaoh’s army is available for a problem as ordinary as undrinkable water in the wilderness. He does not reserve Himself for the spectacular. He shows up at Marah too. That is the word Exodus 15 leaves the reader with before the people move on to Elim and the twelve springs: He is your healer. Even here.