What This Chapter Is About
A short psalm of thanksgiving closes the first major section of Isaiah. The redeemed remnant sings two songs: the first confesses that God's anger has turned to comfort, the second calls the nations to witness what the Holy One of Israel has done. Water, song, and proclamation replace the fire, judgment, and silence of the preceding chapters.
What Makes This Chapter Remarkable
This chapter functions as the doxological conclusion to Isaiah 1-12, much as the Song of the Sea (Exodus 15) concluded the exodus narrative. After eleven chapters of oracles — judgment on Israel, judgment on the nations, messianic promise, remnant theology, the peaceable kingdom — the response is not theology but song. The shift from third-person prophecy to first-person praise ('I will trust,' 'I will give thanks,' 'the LORD is my strength') places the reader inside the redeemed community. We are no longer hearing about salvation; we are singing it. The phrase 'Draw water from the wells of salvation' (v. 3) is one of the most beloved lines in Jewish liturgy, chanted during Sukkot water-drawing ceremonies and at the conclusion of Shabbat (Havdalah). Its placement here — after the fire of chapters 9-10 and the paradise of chapter 11 — makes it a climactic image: what was consumed by fire is now irrigated by salvation.
Translation Friction
The chapter's brevity (six verses) belies its density. The phrase ki yashir YHWH ('for the LORD has done gloriously,' v. 5) compresses an entire theology of divine action into three words. The verb zimrat in verse 2 can mean either 'song' or 'strength' (or both simultaneously) — the ambiguity is likely intentional, as the parallel with oz ('strength') suggests a hendiadys: 'my strength and my song.' This same phrase appears in Exodus 15:2 and Psalm 118:14, creating a three-text echo that is impossible to reproduce in English without a note. The imperative verbs in verses 4-5 shift from singular (addressing the individual) to plural (addressing the community), but English 'you' obscures this transition.
Connections
The phrase 'the LORD is my strength and my song' (ozi vezimrat Yah, v. 2) quotes Exodus 15:2 verbatim — the Song of the Sea that Moses and Israel sang after crossing the Red Sea. By placing this exodus quotation here, Isaiah casts the entire messianic deliverance of chapters 7-11 as a new exodus. The 'wells of salvation' (ma'ayanei ha-yeshu'ah, v. 3) connect to the water imagery throughout Isaiah (8:6, the gentle waters of Shiloah that Israel rejected; 35:6-7, streams in the desert; 55:1, 'Come, all who are thirsty'). The command to 'make known his deeds among the peoples' (v. 4) anticipates the servant's mission to the nations in Isaiah 42:1-4 and 49:6. The final phrase 'the Holy One of Israel' (qedosh Yisra'el) in verse 6 bookends the section that opened with Isaiah's vision of the thrice-holy God in chapter 6 — the holiness that terrified Isaiah in the temple now dwells 'in your midst' as cause for rejoicing.