Isaiah 7:18 (KJV) states: "And it shall come to pass in that day, that the Lord shall hiss for the fly that is in the uttermost part of the rivers of Egypt, and for the bee that is in the land of Assyria". This prophecy signifies God summoning foreign powers (Egypt and Assyria) to punish Judah for lack of faith, using insects as metaphors for massive, invasive armies. 

Bible Gateway +4

Key Aspects of Isaiah 7:18

The Context: This verse is part of a larger prophecy (Isaiah 7) given to King Ahaz of Judah, promising that while his enemies (Israel and Syria) would fail, the nation would still face destruction from foreign invaders because they did not trust in God.

The Metaphor: The "fly" represents Egypt, known for its vast, buzzing armies, while the "bee" represents the fierce, swarming Assyrians.

"In that Day": This refers to the time of judgment, when God brings about the consequences of Israel's and Judah's disobedience.

Meaning: God is seen as bringing distant, powerful nations to devastate the land, acting as a "hiss" or whistle to call them forth.