The Wildfire of Wickedness.

18 For wickedness burns like a fire;
    it consumes briers and thorns;
it kindles the thickets of the forest,
    and they roll upward in a column of smoke.
19 Through the wrath of the Lord of hosts
    the land is scorched,
and the people are like fuel for the fire;
    no one spares another.
20 They slice meat on the right, but are still hungry,
    and they devour on the left, but are not satisfied;
each devours the flesh of his own arm,
21 Manasseh devours Ephraim, and Ephraim devours Manasseh;
    together they are against Judah.
For all this his anger has not turned away,
    and his hand is stretched out still.

1 Woe to those who decree iniquitous decrees,
    and the writers who keep writing oppression,
2 to turn aside the needy from justice
    and to rob the poor of my people of their right,
that widows may be their spoil,
    and that they may make the fatherless their prey!
3 What will you do on the day of punishment,
    in the ruin that will come from afar?
To whom will you flee for help,
    and where will you leave your wealth?
4 Nothing remains but to crouch among the prisoners
    or fall among the slain.
For all this his anger has not turned away,
    and his hand is stretched out still. – Isaiah 9:18-10:4 ESV

Mankind has a natural proclivity to rationalize the presence of sin. We either deny it exists or downplay its impact. And in doing so, we ignore the inherent danger of its existence. Sin is nothing short of rebellion against God’s will concerning man’s relationship with Him, but also with one another. When God gave His commandments, they had a vertical and horizontal aspect to them. They were intended to regulate man’s relationship with God, but also with the rest of creation, especially other men who had been made in God’s image. 

God was not just interested in men showing Him honor and extending to Him the glory He deserved. He wanted them to treat one another with justice. And He wanted us to keep all His commandments, not just those that covered our relationship with Him.

And by this we know that we have come to know him, if we keep his commandments. Whoever says “I know him” but does not keep his commandments is a liar, and the truth is not in him. – 1 John 2:3-4 ESV  

And John went on to clarify that keeping the commandments of God included all those commands that had to do with our relationships with our fellow men.

Whoever says he is in the light and hates his brother is still in darkness. Whoever loves his brother abides in the light, and in him there is no cause for stumbling. But whoever hates his brother is in the darkness and walks in the darkness, and does not know where he is going, because the darkness has blinded his eyes. – 1 John 2:9-11 ESV

And Isaiah warned the people of Judah and Israel that their failure to keep the commands of God were going to bring the judgment of God. Their refusal to treat God as holy and to treat their brothers and sisters with dignity, was going to result in devastation.

The land will be blackened
    by the fury of the Lord of Heaven’s Armies.
The people will be fuel for the fire,
    and no one will spare even his own brother. – Isaiah 9:19 NLT

The people were going to find themselves turning on one another in a vain attempt to survive the judgment God would unleash on them. But this would simply be a more intense manifestation of their normal treatment of one another. Because of their disregard for God and their disrespect for one another, God would allow them to literally devour one another.

They will attack their neighbor on the right
    but will still be hungry.
They will devour their neighbor on the left
    but will not be satisfied.
In the end they will even eat their own children. – Isaiah 9:20 NLT

When the Assyrians attacked, it would become every man for himself.

Manasseh will feed on Ephraim,
    Ephraim will feed on Manasseh,
    and both will devour Judah. – Isaiah 9:21 NLT

Tribes would turn against their fellow tribes. Brothers would abuse brothers. All because they had failed to love God and love one another. The people of Judah and Israel had a track record of abuse, and Isaiah leveled some stinging indictments against them:

What sorrow awaits the unjust judges
    and those who issue unfair laws.
They deprive the poor of justice
    and deny the rights of the needy among my people.
They prey on widows
    and take advantage of orphans. – Isaiah 10:1-2 NLT

From the top-down, they were all guilty of practicing injustices of all kinds. They took advantage of the weak and defenseless. They failed to care for the helpless and hopeless. And in doing so, they were violating the expressed will of God.

He has told you, O man, what is good; and what does the LORD require of you but to do justice, and to love kindness, and to walk humbly with your God? – Micah 6:8 ESV

To do righteousness and justice is more acceptable to the LORD than sacrifice. – Proverbs 21:3 ESV

Righteousness, justice, kindness, mercy. These things were missing among the people of God. Because they had forsaken God, they no longer had a heart for God and their own hearts failed to reflect the character of God. They had turned way from Him and were now turning on one another. And their unjust and unrighteous behavior was going to bring down on them God’s righteous wrath in the form of the Assyrian army.

What will you do when I punish you,
    when I send disaster upon you from a distant land?
To whom will you turn for help?
    Where will your treasures be safe? – Isaiah 10:3 NLT

Israel had determined to put all their hope in their alliance with the Syrians. But they would prove to be no help when the Assyrians showed up. The nation of Judah had placed their faith in their alliance with the Assyrians. But they would soon discover that the fall of their northern neighbor at the hands of their ally would be far from good news. They would also suffer because of their failure to trust God. They too would endure the judgment of God because of their refusal to live in obedience to God.

But as bad as it would get, the end of God’s righteous wrath would not yet be exhausted.

You will stumble along as prisoners
    or lie among the dead.
But even then the Lord’s anger will not be satisfied.
    His fist is still poised to strike. – Isaiah 10:4 NLT

This should give us some idea of just how much God hates sin. He doesn't overlook it or excuse it. He doesn’t make light of it. In fact, Isaiah describes the devastating nature of sin in very stark terms.

This wickedness is like a brushfire.
    It burns not only briers and thorns
but also sets the forests ablaze.
    Its burning sends up clouds of smoke. – Isaiah 9:18 NLT

Sin is deadly. It may start small, but it spreads quickly and leaves a path of devastation in its wake. Like an out-of-control wildfire, it destroys everyone and everything in its path. Which is why God is obligated to deal with it in such a powerful manner. We may excuse it, rationalize it, minimize or deny it, but God cannot and will not.

English Standard Version (ESV)
The Holy Bible, English Standard Version. ESV® Permanent Text Edition® (2016). Copyright © 2001 by Crossway Bibles, a publishing ministry of Good News Publishers.

New Living Translation (NLT)
Holy Bible, New Living Translation, copyright © 1996, 2004, 2015 by Tyndale House Foundation. Used by permission of Tyndale House Publishers Inc., Carol Stream, Illinois 60188. All rights reserved.

The Message (MSG)
Copyright © 1993, 1994, 1995, 1996, 2000, 2001, 2002 by Eugene H. Peterson