Isaiah 30:17

17 One of them will chase a thousand of you. Five of them will make all of you flee. You will be left like a lonely flagpole on a hill or a tattered banner on a distant mountaintop.”

Isaiah 30:17 Meaning and Commentary

Isaiah 30:17

One thousand [shall flee] at the rebuke of one
A troop of horse, consisting of a thousand men, shall flee upon the attack and onset of a single person, so dispirited should they be, and so possessed of the fear of the enemy; what was promised to them with respect to their enemies is here turned against them, ( Leviticus 26:7 Leviticus 26:8 ) ( Deuteronomy 32:30 ) : at the rebuke of five shall ye flee;
being attacked by a very small number, the whole army should run away: this denotes with what ease they should be routed, and put to flight; and is to be understood, not of what would be at the present time, but of what should come to pass hereafter, when the Chaldean army should come against them; till ye be left as a beacon upon the top of a mountain;
or, "as the mast of a ship", so the Septuagint and other versions. Jarchi says it signifies a high tree, or tall piece of wood fixed in the earth, like a ship's mast F16, set up to give warning of an enemy's approach, and when, and where, sometimes fires used to be kindled; hence the Targum is,

``till ye are left as a burning torch on the top of a mountain.''
The Syriac version renders it, "as a wild ass", solitary and alone: and as an ensign on a hill;
erected as a trophy of victory. The design of the metaphors is to show that there should be few that should escape falling into the enemy's hand, here and there one, that should he scattered about, and be very thin, as beacons and signs are, and should be warnings to others of pursuing the same foolish and sinful methods and practices.
FOOTNOTES:

F16 So Ben Melech says, it is a high piece of wood in a ship, on which they hang an ensign or flag; and so he interprets the ensign in the next clause of a veil, so called, because they lift it up upon the mast.

Isaiah 30:17 In-Context

15 This is what the Sovereign LORD, the Holy One of Israel, says: “Only in returning to me and resting in me will you be saved. In quietness and confidence is your strength. But you would have none of it.
16 You said, ‘No, we will get our help from Egypt. They will give us swift horses for riding into battle.’ But the only swiftness you are going to see is the swiftness of your enemies chasing you!
17 One of them will chase a thousand of you. Five of them will make all of you flee. You will be left like a lonely flagpole on a hill or a tattered banner on a distant mountaintop.”
18 So the LORD must wait for you to come to him so he can show you his love and compassion. For the LORD is a faithful God. Blessed are those who wait for his help.
19 O people of Zion, who live in Jerusalem, you will weep no more. He will be gracious if you ask for help. He will surely respond to the sound of your cries.
Holy Bible. New Living Translation copyright© 1996, 2004, 2007, 2013 by Tyndale House Foundation. Used by permission of Tyndale House Publishers Inc., Carol Stream, Illinois 60188. All rights reserved.