Isa 9:18 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.
Israel's wickedness is out of control, destroying everything in its way.
James 3:5 Even so the tongue is a little member, and boasteth great things. Behold, how great a matter a little fire kindleth!
James 3:6 And the tongue is a fire, a world of iniquity: so is the tongue among our members, that it defileth the whole body, and setteth on fire the course of nature; and it is set on fire of hell.
James 3:7 For every kind of beasts, and of birds, and of serpents, and of things in the sea, is tamed, and hath been tamed of mankind:
James 3:8 But the tongue can no man tame; it is an unruly evil, full of deadly poison.
Our words can bless or destroy, we also need to watch our behavior.
Isa 9:19 Through the wrath of the LORD of hosts is the land darkened, and the people shall be as the fuel of the fire: no man shall spare his brother.
The wickedness of the people makes God's wrath, the fire greater. They will consume one another because of their sins. Sin begat's sin and under the law, God must punish the sin.
Gal 5:14 For all the law is fulfilled in one word, even in this; Thou shalt love thy neighbour as thyself.
Gal 5:15 But if ye bite and devour one another, take heed that ye be not consumed one of another.
Gal 5:16 This I say then, Walk in the Spirit, and ye shall not fulfil the lust of the flesh.
Gal 5:17 For the flesh lusteth against the Spirit, and the Spirit against the flesh: and these are contrary the one to the other: so that ye cannot do the things that ye would.
Gal 5:18 But if ye be led of the Spirit, ye are not under the law.
Jesus is the way of grace and love. The law condemns. We try to always walk in the Spirit, avoiding the confusion and strife of the flesh and the devil.
Isa 9:20 And he shall snatch on the right hand, and be hungry; and he shall eat on the left hand, and they shall not be satisfied: they shall eat every man the flesh of his own arm:
God will not restrain their behavior and they would become more and more violent against one another and against Judah. One way God judges, is to move aside and let free will sin continue until they destroy themselves. They then cry in anger where is this God. I do not see him, why has he let such evil happen? God does not do evil, our choices are evil and lead to destruction, yes even of the innocent children. People sin and then blame God, the blame game. God does not play games, He withdraws from sin. If they would repent and seek God the evil would be done away with.
Isa 9:21 Manasseh, Ephraim; and Ephraim, Manasseh: and they together shall be against Judah. For all this his anger is not turned away, but his hand is stretched out still.