On that dayThis phrase indicates a specific time in the future, often used in prophetic literature to denote a moment of divine intervention or judgment. In the context of Isaiah, it refers to a time when God will act decisively in the affairs of nations, particularly concerning Judah and its enemies.
the LORD will whistle
The imagery of God whistling suggests a sovereign command over creation, akin to a shepherd calling his flock. It emphasizes God's control over nations and nature, summoning them to fulfill His purposes. This reflects God's authority and the ease with which He orchestrates events.
to the flies at the farthest streams of the Nile
Flies symbolize swarms, often associated with pestilence or overwhelming numbers. The reference to the Nile points to Egypt, a significant power in the ancient Near East. Historically, Egypt was both a threat and a potential ally to Israel, and this imagery suggests an invasion or influence from Egypt, possibly as a form of judgment or pressure on Judah.
and to the bees in the land of Assyria
Bees are known for their aggression and persistence, symbolizing the formidable and relentless nature of the Assyrian empire. Assyria was a dominant force during Isaiah's time, known for its military prowess and expansionist policies. This phrase indicates an impending threat from Assyria, which historically conquered the Northern Kingdom of Israel and posed a significant threat to Judah.
in the land of Assyria
Assyria was a major empire located in what is now northern Iraq. It was known for its advanced military technology and brutal tactics. The mention of Assyria highlights the geopolitical realities of Isaiah's time, where Assyria was a looming threat to the smaller nations of the region, including Judah. This also foreshadows the eventual Assyrian invasion and the challenges faced by the people of God.
Persons / Places / Events
1.
The LORDThe sovereign God of Israel, who orchestrates events and uses nations to fulfill His purposes.
2.
The FlySymbolic of the Egyptian forces, representing a distant threat that God will summon.
3.
The BeeSymbolic of the Assyrian forces, representing another threat that God will call upon.
4.
The NileThe great river of Egypt, indicating the source of the Egyptian threat.
5.
AssyriaA powerful empire to the northeast of Israel, known for its military might and aggression.
Teaching Points
God's Sovereignty Over NationsGod is in control of all nations and uses them to accomplish His divine purposes. This should bring comfort and trust in His ultimate plan.
Judgment as a Call to RepentanceThe summoning of foreign powers serves as a warning and a call to repentance for God's people. We should examine our lives and turn back to God when facing trials.
The Certainty of God's WordProphecies like this one in Isaiah remind us of the reliability and truth of God's Word. We can trust His promises and warnings.
The Role of Nations in God's PlanNations and their leaders are instruments in God's hands. We should pray for our leaders and seek God's will in international affairs.
The Importance of ObedienceDisobedience to God can lead to dire consequences, as seen in the summoning of Egypt and Assyria. We should strive to live in obedience to God's commands.
Bible Study Questions and Answers
1.What is the meaning of Isaiah 7:18?
2.How does Isaiah 7:18 illustrate God's sovereignty over nations and nature?
3.What lessons can we learn from God's use of "flies" and "bees"?
4.How does Isaiah 7:18 connect with God's judgment in other scriptures?
5.How can we trust God's plans when facing overwhelming circumstances today?
6.In what ways can we see God's control in current world events?
7.What is the significance of Isaiah 7:18 in the context of God's sovereignty over nations?
8.How does Isaiah 7:18 reflect God's control over historical events?
9.Why does Isaiah 7:18 use the imagery of flies and bees?
10.What are the top 10 Lessons from Isaiah 7?
11.What are the Bible's teachings on shaving?
12.Isaiah 18:7: Why would the prophecy single out gifts from Ethiopia if there's no clear historical account of such tribute being delivered to Mount Zion?
13.Isaiah 18:5-6: Is there any record of a sudden devastation matching the harvest metaphor described here?
14.Isaiah 18:1: How can the reference to a 'land of whirring wings' be reconciled with any known geography or culture?What Does Isaiah 7:18 Mean
On that dayIsaiah’s phrase looks ahead to a definite, God-appointed moment when His judgment would fall on Judah. The context (Isaiah 7:1–17) describes a nervous king Ahaz, political intrigue, and the sign of Immanuel. By verse 18 the scene shifts from comfort to coming discipline.
• “That day” points to the time when both Egypt and Assyria would be unleashed against Judah, fulfilling the warning ofDeuteronomy 28:49–52.
• Just four chapters earlier, Isaiah had used a similar marker: “In that day the LORD of Hosts will be a crown of glory” (Isaiah 28:5). The repetition assures us of God’s precise timetable—He alone sets the calendar of events.
the LORD will whistleTo “whistle” is to summon. The LORD does not plead or negotiate; He commands.
•Isaiah 5:26 echoes the idea: “He lifts up a banner for distant nations and whistles for them from the ends of the earth,” underscoring how effortlessly God gathers foreign powers.
•Zechariah 10:8 shows the same verb used positively—He whistles for His people to gather. The contrast reminds us that the same sovereign call can bless or judge depending on the audience.
• The picture is vivid and literal: God’s soft signal—no trumpet blast needed—moves empires. His authority is absolute, just asPsalm 33:9 declares, “For He spoke, and it came to be.”
to the flies at the farthest streams of the Nile“Flies” represent Egypt’s armies, countless and irritating, streaming in from the remotest branches of the Nile Delta.
• Egypt had once been plagued by literal flies (Exodus 8:21-24). Now God would direct a different swarm—soldiers—toward Judah.
• “Farthest streams” highlights distance: even those far from Judah’s borders respond instantly to God’s call, fulfillingIsaiah 19:1, “Behold, the LORD rides on a swift cloud and comes to Egypt.”
• The swarm image signals harassment more than outright annihilation—persistent pressure that wears down resistance, asDeuteronomy 28:25 warns.
and to the bees in the land of AssyriaIf Egyptian “flies” annoy, Assyrian “bees” attack with precision. Assyria’s disciplined ranks would sting hard and repeatedly.
•Deuteronomy 1:44 andPsalm 118:12 compare attacking armies to bees, emphasizing relentless pursuit.
•Isaiah 10:5 names Assyria plainly: “Woe to Assyria, the rod of My anger.” God wields this northern power like a beekeeper releasing a hive.
• History records the fulfillment: Tiglath-pileser III, Shalmaneser V, and Sennacherib invaded the region (2 Kings 15–19). Their campaigns moved exactly as Isaiah foretold—summoned, not by geopolitical chance, but by divine whistle.
• The dual imagery—flies from the southwest, bees from the northeast—surrounds Judah, matching God’s earlier warning in2 Kings 17:13-18 about judgment coming from multiple fronts when His people persist in unbelief.
summaryIsaiah 7:18 paints a literal, prophetic scene: on God’s chosen day, He will merely “whistle,” and two great powers will converge on Judah—Egypt like swarming flies, Assyria like stinging bees. The verse showcases God’s effortless authority over nations, the certainty of covenant discipline, and the precision with which Scripture’s warnings come to pass.
(18)
The Lord shall hiss for the fly . . .--See for the phrase the Note on
Isaiah 5:26. The legions of Egypt are represented by the flies that swarmed on the banks of the Nile (
Exodus 8:24, and possibly
Isaiah 18:1), those of Assyria by the bees of their forests and their hills (
Deuteronomy 1:44;
Psalm 118:12). The mention of Egypt indicates that some of the king's counsellors were then, as afterwards (
Isaiah 18:2;
Isaiah 31:1), planning an Egyptian alliance, as others were relying on that with Assyria. The prophet tells them that each is fraught with danger. No help and much evil would come from such plans. Consistent in his policy from first to last, the one counsel he gives is that men should practise righteousness, and wait upon the Lord. . . .
Verse 18. -
The Lord shall hiss (see
Isaiah 5:26, and note
ad loc.).
For the fly that is in the uttermost part of the rivers of Egypt. The "fly of Egypt," like the "bee of Assyria," represents the military force of the nation, which God summons to take part in the coming affliction of Judaea. The prophetic glance may be extended over the entire period of Judah's decadence, and the "
flies" summoned may include those which clustered about Neco at Megiddo, and carried off Jehoahaz from Jerusalem (
2 Kings 23:29-34). There may be allusion also to Egyptian ravages in the reigns of Sargon, Sennacherib, and Esar-haddon. In any general review of the period we shall find it stated that, from the time of Sargon to that of Cyrus, Judaea was the battle-ground upon which the forces of Assyria (or Assyro-Babylonia) and Egypt contended for the empire of western Asia. The desolation of the land during this period was produced almost as much by the Egyptian "
fly as by the Assyrian
bee." The "rivers of Egypt" are the Nile, its branches, and perhaps the great canals by which its waters were distributed.
The bee that is in the land of Assyria. The choice of the terms "
bee" and "
fly," to represent respectively the hosts of Assyria and Egypt, is not without significance. Egyptian armies were swarms, hastily levied, and very imperfectly disciplined.
Assyrian were bodies of trained troops accustomed to war, and almost as well disciplined as the Romans.
Parallel Commentaries ...
Hebrew
On thatהַה֗וּא(ha·hū)Article | Pronoun - third person masculine singular
Strong's 1931:He, self, the same, this, that, as, aredayבַּיּ֣וֹם(bay·yō·wm)Preposition-b, Article | Noun - masculine singular
Strong's 3117:A daythe LORDיְהוָה֙(Yah·weh)Noun - proper - masculine singular
Strong's 3068:LORD -- the proper name of the God of Israelwill whistleיִשְׁרֹ֤ק(yiš·rōq)Verb - Qal - Imperfect - third person masculine singular
Strong's 8319:To be shrill, to whistle, hissto the fliesלַזְּב֔וּב(laz·zə·ḇūḇ)Preposition-l, Article | Noun - masculine singular
Strong's 2070:A flyat the farthestבִּקְצֵ֖ה(biq·ṣêh)Preposition-b | Noun - masculine singular construct
Strong's 7097:End, extremitystreamsיְאֹרֵ֣י(yə·’ō·rê)Noun - masculine plural construct
Strong's 2975:Nile -- a channel, a fosse, canal, shaft, the Nile, the Tigrisof the Nileמִצְרָ֑יִם(miṣ·rā·yim)Noun - proper - feminine singular
Strong's 4714:Egypt -- a son of Ham, also his descendants and their country in Northwest Africaand to the beesוְלַ֨דְּבוֹרָ֔ה(wə·lad·də·ḇō·w·rāh)Conjunctive waw, Preposition-l, Article | Noun - feminine singular
Strong's 1682:The beein the landבְּאֶ֥רֶץ(bə·’e·reṣ)Preposition-b | Noun - feminine singular construct
Strong's 776:Earth, landof Assyria.אַשּֽׁוּר׃(’aš·šūr)Noun - proper - feminine singular
Strong's 804:Ashshur
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OT Prophets: Isaiah 7:18 It will happen in that day that (Isa Isi Is)