The seam of the book

⚠ Chapter 40 is where nearly two thousand years of Jewish and Christian reading part company on a genuine, load-bearing question. From here to the end of the book (chs. 40–66), the setting, tone, and horizon all shift: Jerusalem's fall and exile are spoken of as accomplished fact (v2), Babylon's idols are mocked from close range, and a Persian king is later named and called Jehovah's “anointed” (45:1, forthcoming on this shelf) roughly a century and a half before Cyrus actually issued that decree. The traditional view holds that the eighth-century Isaiah ben Amoz, the prophet of chs. 1–39, wrote this too, predictively, decades before any of it happened — the position taken by the New Testament itself, which quotes both halves under Isaiah's single name (John 12:38-41 cites 6:10 and 53:1 in the same breath as one prophet's words). The critical-scholarly position, standard since the nineteenth century, holds that chs. 40–66 (or 40–55, “Deutero-Isaiah”) come from an anonymous prophet writing IN or near the exile, decades after the historical Isaiah's death, whose words were later joined to his book. Both readings take the text's own claims seriously in different ways — predictive prophecy on one side, a real audience actually living the events described on the other — and this library reports the difference rather than casting a vote.

“Comfort, comfort” doubles the imperative of nacham (see the Dictionary) — the same root behind Jeremiah's “comfort” and “relent,” here doubled for emphasis at the open of forty chapters of it. The whole block from here to the end of the book is sometimes called, on the strength of this verse alone, the Book of Comfort.

Double for her sins

⚠ “Double for all her sins” — kiflayim, literally “a doubling, twofold” — is uncomfortable enough that it has been read at least three ways. Plainly: Jerusalem's punishment exceeded what her sin deserved, a reading some later rabbinic sources and not a few modern commentators accept without softening it. Commercially: the word can carry the sense of a debt considered PAID IN FULL, the kind of double receipt a creditor issues to certify nothing more is owed, without implying the payment literally doubled the debt. Textually: some propose the vowels originally read a different word close in spelling. This translation prints the plain sense and leaves the problem standing rather than resolving it for the reader.

A voice crying in the wilderness — or a voice crying, in the wilderness

⚠ Every one of the four Gospels quotes this verse for John the Baptist (Matthew 3:3, Mark 1:3, Luke 3:4, John 1:23) — the single most-quoted line from this chapter, and the reason “a voice crying in the wilderness” is proverbial English. But the Hebrew's own parallelism cuts the line differently than that famous phrase suggests. The verse pairs two clauses: “IN THE WILDERNESS, clear the way of Jehovah” and “IN THE DESERT, make level a highway for our God” — both times pairing the location with the ROAD-CLEARING, not with the calling. Read this way the voice simply calls out (location unspecified), and the wilderness is where the road gets built, not where the caller stands. The Greek New Testament (following the Septuagint) instead attaches “in the wilderness” to the voice itself — “a voice of one crying IN THE WILDERNESS: prepare the way” — which is why John the Baptist is pictured standing out in open desert rather than merely announced from somewhere unnamed. KJV follows that same Greek-shaped parsing here, while ASV, NIV, and ESV instead follow the Hebrew's own structure — “prepare the way for the Lord IN THE WILDERNESS” — which is the reading this translation follows too. Both parsings are grammatically available in the unpointed consonantal text. Matthew's quotation also swaps “our God” for “his paths” — the highway built for Jehovah in Isaiah becomes, in Matthew, a highway for the one John announces.

Grass, and the good news that outlasts it

“All its loveliness” renders chesed (see the Dictionary) in a sense this word almost never carries elsewhere on this shelf — not covenant loyalty but something closer to beauty, constancy, or charm, the bloom on the flower rather than a relationship kept. The English shelf splits four ways on it: KJV “goodliness,” ESV “beauty,” and this translation's “loveliness” matches what a modern American shelf-standard (NASB) prints there — while NIV alone prints “faithfulness,” pulling the word back toward its usual covenant sense even here, against the grain of a verse about grass and flowers.

“All flesh is grass” and “herald of GOOD NEWS to Zion” (v9) share a Hebrew root most English Bibles have no way to show: basar means both FLESH (the perishable stuff of v6-7) and, in its verbal form, TO BRING NEWS — the same root behind besorah, the Hebrew word for gospel. The chapter's structure plays on this without saying so: flesh that withers like grass, framing a herald whose news does not.

Strength, four times

Koach, “strength, power,” threads this chapter from here to its last line: the herald lifts her voice “with strength” here, God is “strong in power” at v26, he “gives strength to the weary” at v29, and those who wait for Jehovah “renew their strength” at v31 — the same word carrying the chapter from a herald's shout to the tired legs of an ordinary person, by way of the stars.

Who has instructed the Spirit

⚠ “The spirit of Jehovah” at v13 is the identical Hebrew phrase — ruach Adonai — as “the BREATH of Jehovah” that withers the grass at v7, four verses earlier: the same wind that dries up a flower is, unqualified, beyond any creature's power to instruct or direct. Paul quotes v13 twice, differently each time: Romans 11:34 (not yet on this shelf) uses it to close an argument about God's inscrutable mercy to Israel and the nations, and 1 Corinthians 2:16 (not yet on this shelf) answers its own rhetorical question — nobody has known the mind of the Lord, “but we have the mind of Christ.”

Fuel enough for what Lebanon is

Lebanon's forests were the ancient world's byword for abundance — the timber Solomon imported to build the Temple (1 Kings 5, forthcoming on this shelf) came from here. Naming it as insufficient fuel for a single burnt offering, its whole animal population insufficient as the offering itself, is the chapter's most concrete image yet for how small even the grandest human resources are against this God: not a small sacrifice that would fall short, but the richest forest on earth.

Less than nothing

“Empty chaos” renders tohu — the same word Genesis 1:2 (already on this shelf) uses for the earth's condition before the first day of creation, there rendered “formless” (paired with its usual companion word bohu, “empty” — “the earth was formless and empty”). Tohu appears alone here, without bohu, which is why this translation renders it differently in this different grammatical slot; the underlying word is identical. Nations, here, are not merely small before God; they are measured against the raw formlessness that existed before God spoke order into anything at all. KJV keeps a two-word pairing close to the Hebrew, “less than nothing, and vanity”; ESV keeps the pair but modernizes the second word to “emptiness”; NIV collapses both into “worthless and less than nothing,” losing tohu's specific echo of Genesis 1 entirely. The word recurs at v23, of rulers specifically.

An idol, built to not fall down

The idol-building instructions (vv19-20) are the most literal, workshop-level description of ancient metalworking anywhere in Isaiah: a wood core, hammered gold overlay, cast silver chain fittings, a carpenter chosen for picking rot-resistant timber. The satire is specific rather than generic — this reads like a prophet who has watched the process — and its punchline is quiet: the finished god has to be built “so that it will not be moved,” propped upright by the very craftsman who made it.

The circle of the earth

⚠ “The circle of the earth” — chug ha-aretz — is sometimes cited as evidence the Bible anticipated a spherical earth centuries before Greek science confirmed it. That claim overreaches what the word can bear: chug means a circle or disk, drawn like a compass-drawn line (the same root gives the word for a drafting-compass), and is equally at home describing a flat disk as a sphere — nothing in the word itself settles the question either way. What the verse does clearly assert is scale: the one who sits enthroned above that circle, whatever its shape, sees its inhabitants as grasshoppers.

The Holy One, by his own words

V25 answers v18 nearly word for word — “to whom will you liken GOD” becomes “to whom will you liken ME” — but the speaker has changed from the narrator's question to a direct first-person claim, closed with a title used nowhere yet on this shelf: “the Holy One.” Isaiah favors this title (“the Holy One of Israel” recurs some two dozen times across the book) far more than any other prophet.

Named stars, against named gods

“He calls each one by name” is aimed at a specific rival claim: in Babylonian religion the stars were themselves divine beings, named and catalogued as gods in their own right. Naming them here as JEHOVAH'S creations, mustered like an army by number, answers Babylonian astral religion on its home ground — not by denying the stars exist or matter, but by demoting them from gods to a roll call.

Jacob and Israel's actual complaint

The chapter's cosmic argument (vv12-26) turns out to be aimed at one ordinary, human-scale complaint, finally voiced at v27: that God has stopped paying attention. “My way is hidden from Jehovah” is not doubt that God exists or is powerful — the previous fifteen verses have just established both at maximum volume — it is the far more survivable fear that a real and present God has simply looked away.

Wings like eagles

The chapter's closing promise runs in the opposite direction from its opening ones: everything from v12 on has been about how vastly God's strength exceeds any creature's, and now that same strength is offered to “him who has no might” — not to the strong but specifically to those who have none left, youths and young men included, the ones who would ordinarily be expected to out-endure everyone else. “Mount up with wings like eagles” closes a chapter that began with a voice in the wilderness and a flower that withers by promising the exact opposite of both: not a fading thing, but a renewed one; not a cry that goes unanswered, but strength that does not run out.