Catholic Commentary
Bitter Irony: Futile Preparations for the Siege
14Draw water for the siege. Strengthen your fortresses. Go into the clay, and tread the mortar. Make the brick kiln strong.15There the fire will devour you. The sword will cut you off. It will devour you like the grasshopper. Multiply like grasshoppers. Multiply like the locust.
Nahum 3:14–15 contains a prophetic taunt in which God sarcastically commands Nineveh to prepare futile defenses against siege, then abruptly announces their destruction by fire and sword will occur in the very place they fortify. The passage uses ironic imperatives and locust imagery to convey that no human preparation can withstand divine judgment.
Nineveh's desperate fortifications are already burning in God's mind—every brick it lays is a brick in its own pyre.
The Typological and Spiritual Senses
In the allegorical sense, Nineveh represents any power — personal, social, or cosmic — that sets itself against God's reign. The futile preparations for siege become a figure of the soul's attempt to fortify itself against divine grace through its own resources: piling up works of self-justification, strengthening walls of pride, stockpiling excuses. Augustine recognized this dynamic: the city that is built on self-love rather than love of God builds only for its own destruction (City of God, XIV.28). In the anagogical sense, the fire that devours points forward to the eschatological fire of divine judgment, which no earthly fortification can resist (cf. 2 Peter 3:10–12).
Catholic tradition reads Nahum not merely as a historical oracle against a long-vanished empire but as a permanent theological statement about the nature of divine justice and the limits of human autonomy. The Catechism of the Catholic Church teaches that God's justice is inseparable from his mercy, and that the condemnation of Nineveh in Nahum must be read alongside Jonah's earlier oracle of repentance — together they form a diptych: God is patient, but his patience is not infinite, and nations (and souls) that spurn the offer of conversion will encounter justice rather than mercy (CCC 1040, 211).
St. Jerome, who translated these verses in the Vulgate and commented on the Minor Prophets, saw Nineveh as a figura of the Devil's city — the civitas diaboli — whose every instrument of self-defense is confounded by divine power. He notes that the very materials of Nineveh's walls (clay, mortar, brick) are perishable, earthly things, and that no structure built from corruptible matter can withstand the incorruptible judgment of God (Commentarii in Nahum).
St. Thomas Aquinas, in his theology of providence, would recognize here the principle that secondary causes — human industry, military preparation, civic organization — operate entirely within the governance of God's primary causality. When God decrees the fall of a proud power, human effort does not merely fail; it is actively incorporated into the mechanism of its own undoing (cf. Summa Theologiae I, q. 22, a. 3).
Pope Benedict XVI, in Verbum Domini (§42), reminds us that the prophets' oracles of judgment are not expressions of divine caprice but of the "demanding nature of love" — God's refusal to be indifferent to injustice is itself a form of fidelity to the covenant and to the dignity of those who have suffered under oppressive power. Nahum's taunt of Nineveh is therefore, at its depth, an act of solidarity with every people Assyria ever crushed.
Contemporary Catholics can encounter these verses as a searching examination of where they place their security. Nineveh's sin was not merely military aggression but a deeper spiritual posture: the conviction that enough resources, enough walls, enough preparation could insulate a civilization from accountability. This is a temptation that is very much alive — in individuals who manage anxiety through control rather than trust, in institutions that respond to scandal with damage control rather than repentance, in cultures that invest in security systems while neglecting justice for the poor.
Nahum 3:14–15 invites the Catholic reader to ask: What are the "brick kilns" I am stoking? Where am I pouring enormous energy into self-fortification that God has already declared futile? The ironic imperatives — go ahead, strengthen, multiply — are an invitation to recognize the absurdity of life lived in opposition to God's will.
Practically, this passage pairs powerfully with the Examen of St. Ignatius: at the end of the day, the Christian is invited to notice not just sins but the fortresses of self-reliance that have been quietly under construction — and to bring them, brick by brick, to the Lord in surrender.
Commentary
Nahum 3:14 — The Taunt of Futile Preparation
Nahum 3:14 is a masterwork of prophetic sarcasm. The imperative verbs — "draw water," "strengthen," "go into the clay," "tread the mortar," "make the brick kiln strong" — pile one upon another in breathless succession, mimicking the frantic urgency of a city bracing for siege. Each command represents a distinct phase of Assyrian military preparation: drawing water was essential for sustaining a garrison during a prolonged blockade; reinforcing the mud-brick walls required reworking clay and mortar on-site; the brick kiln alludes to emergency manufacture of fired bricks to shore up breaches in the fortifications.
The cumulative effect is darkly comic. Nineveh was, by ancient standards, a formidable city. Sennacherib had expanded it enormously; its double walls stretched roughly eight miles in circumference, flanked by a wide moat. The city prided itself on being impregnable. Nahum does not dispute the industry of its defenders — he simply renders their feverish activity absurd by announcing the outcome in advance. The prophet speaks from the standpoint of God's sovereign decree, for whom no wall is too thick and no stockpile sufficient.
The clay and mortar imagery carries a subtle allusion to the labor of enslaved peoples. Brick-making was the work of the oppressed (cf. Exodus 1:14), and Nineveh had built its empire on the backs of conquered nations. Now, in a cruel inversion, it is Nineveh itself that must toil in the mud — and for nothing. There is a poetic justice here that the original hearers would not have missed.
Nahum 3:15 — The Consuming Judgment
Verse 15 shifts without warning from command to verdict: "There the fire will devour you. The sword will cut you off." The word "there" (Hebrew: šām) is pointed and deliberate — in the very place where you build, in the very fortresses you strengthen, destruction will find you. There is no escape to some other location; judgment meets Nineveh precisely at the site of its confidence.
The double agency of fire and sword reflects the two great instruments of ancient siege warfare turned back upon the defender: the besieging army's torch and blade will enter the city despite every precaution. Historically, Nineveh fell in 612 BC to a coalition of Babylonians and Medes; ancient sources (including the Babylonian Chronicle) record the city being burned and its population put to the sword — a remarkable confirmation of the prophetic word.
The locust/grasshopper imagery is deliberately double-edged. In verse 15b, the prophet seems to momentarily encourage Nineveh: "Multiply like grasshoppers. Multiply like the locust." But this is ironic amplification, not consolation. The more Nineveh swarms and multiplies in its self-defense, the more completely it will be consumed — for in verse 17, the same locust imagery is used for Nineveh's merchants and guards who flee at dawn and vanish. The locust is Nineveh's judgment (cf. Joel 1–2; Exodus 10), not its salvation. Nahum thus turns the Assyrian self-image of overwhelming, devouring power (Assyrian armies were themselves compared to locusts in their devastation of other nations) back upon the perpetrator.