What Does Isaiah 9:18 Mean?

For wickedness burns as the fire; it shall devour the briers and thorns, and kindle in the thickets of the forest, and they shall rise like the lifting of smoke.
Isaiah 9:18 · SDV
Key words are shown with the Hebrew or Greek and what each word meant.

Selah Decoded Version The Selah Decoded Version renders what the Hebrew and Greek words meant to the people who first heard them.

This verse in the King James

King James wording
For wickedness burneth as the fire: it shall devour the briers and thorns, and shall kindle in the thickets of the forest, and they shall mount up like the lifting up of smoke.

Wickedness is given the appetite and spread of fire, so the forest’s smoke is the visible measure of what it consumes.

Here, wickedness has fire’s appetite: it consumes the briers and thorns, then catches the dense thickets around them. Its harm spreads through what is connected to it until the landscape rises as smoke. The smoke makes the loss visible.

WHAT THIS UNDOES

The verse undoes the belief that wickedness stays confined to its first target; it spreads through connected growth and leaves destruction visible at a distance.

סִבְכֵי

sivkhei

GROWS FROM

סבך

Interweave, entangle; tangled growth.

The word translated “thickets” comes from ⁨סבך⁩ (savakh), “to interweave or entangle.” The fire reaches the forest’s interlaced growth, so the image shows destruction spreading through the very density of what catches.

ALSO GROWS

sevakh: Thicket; tangled growth.

סְבָךְ

This noun names the dense growth the fire enters.

savakh: To interweave or entangle.

סָבַךְ

The verb reveals the interlaced quality behind the thicket, making the spread through the forest’s growth concrete.

A destructive force feeds on what it reaches and spreads through the connected environment around it.

As fire burns the forest, and as a flame kindles the mountains.
Psalm 83:14 · SDVThe fire and flame reach from the woodland into the mountains, carrying destruction beyond its first patch of fuel.
Even so the tongue is a small limb, and it lifts its neck over great things. Look how great a forest a little fire kindles!
James 3:5 · SDVA small fire kindling a great matter names the disproportionate spread of a destructive force.
For a fire is kindled in my nostrils, and it burns down to the lowest Sheol; it eats the earth with her yield, and sets ablaze the foundations of the mountains.
Deuteronomy 32:22 · SDVThe fire extends through the earth’s increase and into the mountains’ foundations, carrying destruction across the whole landscape.
But the wicked will lose the way, and the enemies of the LORD will be like the weight of the pastures. They will run out, and in smoke they will run out.
Psalm 37:20 · SDV

Both verses use ⁨עָשָׁן⁩ (ʿāshān), “smoke”: in Isaiah it is what the fire leaves behind; in the psalm, the wicked themselves vanish like smoke. The shared word moves from the visible aftermath to the fate of the force that produces it.

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Isaiah 9:18 Meaning