Isaiah

Overview

About a hundred and thirty pages, sixty-six chapters, the longest of the biblical prophetic books and, across the whole span of its composition, probably the most theologically influential, quoted more often in the New Testament than any other prophetic text and providing more of the libretto for Handel’s Messiah than any other single source. The book presents itself as the vision of Isaiah son of Amoz, active in Jerusalem in the eighth century BCE, and traditional readings took the entire sixty-six chapters as the work of that single prophet. Modern critical scholarship, however, has established with a high degree of consensus that the book as we have it spans a much longer period, and is generally divided into at least two, and often three, distinct sections written by different hands across roughly two centuries.

Chapters 1 to 39, generally called First Isaiah or Proto-Isaiah, do largely derive from the historical eighth-century prophet, active during the reigns of several kings of Judah amid the looming threat of the Assyrian empire, which had already destroyed the northern kingdom of Israel and repeatedly threatened Jerusalem itself. Chapters 40 to 55, called Second Isaiah or Deutero-Isaiah, address an entirely different historical situation, a Judean community already living in exile in Babylon roughly a century and a half later, after Jerusalem’s own eventual destruction, and many scholars further distinguish chapters 56 to 66, Third Isaiah, as reflecting the situation of the community that had returned to Jerusalem after the exile ended. The seams between these sections, in tone, historical reference and theological emphasis, are among the clearest and most instructive examples anywhere in the Hebrew Bible of how a single, apparently unified book can actually preserve the layered work of multiple periods and authors joined together under one traditional name.

What happens

First Isaiah, chapters 1 to 39. The earlier chapters are dominated by warning and judgment addressed to the kingdom of Judah and its rulers, condemning both religious hypocrisy, empty sacrifice and ritual observance combined with injustice toward the poor, and specific political folly, above all the temptation to seek security through military alliances with Egypt or other foreign powers rather than trusting in God, during a period when the Assyrian empire posed an existential threat to the small kingdom.

Within this section come some of the book’s most celebrated passages: the vision of swords beaten into plowshares and nations no longer learning war, the announcement of a child to be born bearing titles including Wonderful Counselor and Prince of Peace, traditionally read by Christian interpreters as messianic prophecy, and the account of Isaiah’s own prophetic calling, a vision of God enthroned in the Temple attended by seraphim, in which Isaiah, overwhelmed by his own unworthiness, has his lips purified with a burning coal before accepting the commission to speak. The section also contains extended narrative material concerning King Hezekiah’s confrontation with the Assyrian siege of Jerusalem and his own illness and recovery, material closely paralleled in the historical books of Kings.

Second Isaiah, chapters 40 to 55. The tone shifts decisively and unmistakably. Where the earlier chapters largely warn and condemn, these chapters, addressed to a community already living through the trauma of exile in Babylon after Jerusalem’s destruction, open with comfort: comfort, O comfort my people, and announce that Jerusalem’s period of punishment is over, developing an extended image of a new exodus, a highway prepared through the wilderness for the exiles’ triumphant return home, echoing and deliberately recalling Israel’s original exodus from Egypt centuries earlier.

This section also contains the book’s most theologically ambitious material, a sustained and unusually explicit monotheism insisting that the God of Israel is not merely the strongest among many gods but the only God there is, sovereign over all nations and all history, including, strikingly, identifying the Persian king Cyrus, who would eventually permit the exiles to return, as God’s anointed instrument even though Cyrus himself worshipped other gods entirely.

The section’s most debated material is the sequence of four poems generally called the servant songs, describing a mysterious figure, God’s servant, who is despised and rejected, bears the suffering and transgressions of others, and is led like a lamb to slaughter, yet through whose suffering others are healed. The identity of this servant has been read in radically different ways across the history of interpretation: Jewish tradition has generally understood the servant as Israel itself, called to a vocation of suffering witness among the nations; Christian tradition, beginning already within the New Testament, has read the servant songs as prophecy fulfilled specifically in the suffering and death of Jesus.

Third Isaiah, chapters 56 to 66. The closing chapters, addressed to the situation of a community that has returned to Jerusalem after the exile but finds the restoration incomplete, disappointing and beset by continuing internal division and injustice, combine continued comfort and promise with renewed ethical exhortation, insisting that proper fasting means loosing the bonds of injustice and sharing bread with the hungry rather than mere ritual observance, and closing the whole book with an extraordinary, expansive vision of a new heaven and a new earth, a restored Jerusalem in which former sorrows are no longer remembered.

How to read it

Read the book in its two or three major sections deliberately, and pay attention to the historical situation each section addresses, since much of what otherwise seems like abrupt or confusing shifts in tone across the sixty-six chapters becomes clear once the different historical settings, eighth-century Jerusalem under Assyrian threat, sixth-century exile in Babylon, post-exilic Jerusalem, are kept distinct.

Read the servant songs in chapters 42, 49, 50 and 52 to 53 as a connected sequence, and hold both major interpretive traditions, the servant as Israel and the servant as a specifically messianic figure, in view at once rather than settling immediately on one reading, since the ambiguity itself has been theologically productive across both Jewish and Christian traditions for two millennia.

Notice how explicit and sustained the monotheism becomes specifically in Second Isaiah, insisting repeatedly that there is no other god, a theological claim stated with unusual directness and repetition compared to earlier biblical material, and consider what the experience of exile, and the confrontation with a dominant Babylonian imperial religion, may have contributed to this sharpened formulation.

Read Handel’s Messiah libretto alongside the relevant Isaiah passages if you know the piece; the density of direct quotation, comfort ye my people, every valley shall be exalted, unto us a child is born, he was despised, shows how thoroughly this book has shaped subsequent religious art and how much of its language survives, often unrecognized, in wider culture.

Read the earlier chapters’ combination of ritual critique and political warning together rather than separately, since Isaiah’s central complaint throughout the first section is precisely that religious observance and political security cannot substitute for justice and genuine trust, a linkage that recurs across nearly all the prophetic books.

Questions it raises

• Does recognizing that Isaiah spans multiple authors and centuries change how the book should be read theologically, or does its traditional unity as a single prophetic voice still do meaningful interpretive work regardless of its compositional history?
• Is the servant of the servant songs better understood as Israel, as an individual messianic figure, or as a deliberately ambiguous figure whose openness to multiple readings is itself part of the text’s meaning?
• What did identifying a foreign, non-Israelite king, Cyrus, as God’s anointed instrument accomplish theologically for an exiled community, and how radical a claim was this within its own historical context?
• How does the shift from warning in First Isaiah to comfort in Second Isaiah reflect a change in theological message, and how much simply reflects the different needs of a community facing catastrophe versus a community facing prolonged exile?
• Isaiah’s earlier chapters link empty ritual with social injustice repeatedly. Does that linkage still describe a live tension in religious practice generally, or is it specific to the eighth-century situation the prophet addressed?
• What does the book’s closing vision of a new heaven and new earth do to everything preceding it? Does it complete the book’s arc from warning through comfort to hope, or does it introduce a genuinely new and larger scope the earlier material did not anticipate?