He hath also kindled his wrath - He is angry. Wrath in the Scriptures is usually represented as burning or inflamed - because like fire it destroys everything before it.
And he counteth me unto him as one of his enemies - He treats me as he would an enemy. The same complaint he elsewhere makes; see Job 13:24; perhaps also in Job 16:9. We are not to understand Job here as admitting that "he" was an enemy of God. He constantly maintained that he was not, but he was constrained to admit that God "treated him" as if he were his enemy, and he could not account for it. "On this ground," therefore, he now maintains that his friends ought to show him compassion, instead of trying to prove that he "was" an enemy of God; they ought to pity a man who was so strangely and mysteriously afflicted, instead of increasing his sorrows by endeavoring to demonstrate that he was a man of eminent wickedness.

And he counteth me unto him as one of his enemies - From the seventh to the thirteenth verse there seems to be an allusion to a hostile invasion, battles, sieges, etc.
1. A neighboring chief, without provocation, invades his neighbor's territories, and none of his friends will come to his help. "I cry out of wrong, but I am not heard," Job 19:7.
2. The foe has seized on all the passes, and he is hemmed up. "He hath fenced up my way that I cannot pass," Job 19:8.
3. He has surprised and carried by assault the regal city, seized and possessed the treasures. "He hath stripped me of my glory, and taken the crown from my head," Job 19:9.
4. All his armies are routed in the field, and his strong places carried. "He hath destroyed me on every side," Job 19:10.
5. The enemy proceeds to the greatest length of outrage, wasting every thing with fire and sword. "He hath kindled his wrath against me, and treateth me like one of his adversaries, Job 19:11.
6. He is cooped up in a small camp with the wrecks of his army; and in this he is closely besieged by all the power of his foes, who encompass the place, and raise forts against it. "His troops come together, and raise up their way against me, and encamp round about my tabernacle."
7. Not receiving any assistance from friends or neighbors, he abandons all hope of being able to keep the field, escapes with the utmost difficulty, and is despised and neglected by his friends and domestics because he has been unfortunate. "I am escaped with the skin of my teeth," Job 19:20. "My kinsfolk have failed-all my intimate friends abhorred me," Job 19:14-19.

He hath also kindled his wrath against me,.... In this and some following verses the metaphor is taken from a state of warfare, in which enemies are engaged in an hostile way, Job 19:12; in which way Job apprehended God was come forth against him; he imagined that the wrath of God, which is comparable to fire for its force and fury, was kindled against him; that it began to appear, and was bursting out in a flame upon him, and all around him, to consume him; he thought his afflictions were in wrath, which is often the mistaken apprehension of good men, see Psalm 38:1; and that the terrors of it were set in battle array against him, Job 6:4;
and he counted me unto him as one of his enemies; all men are by nature enemies to God, yea, enmity itself, and so are his own people while unregenerate, until the enmity of their hearts is slain, and they are reconciled to God by his spirit and grace; but as Job was truly a gracious man, and possessed of the fruits of the spirit, he must among the rest of his graces have the love of God in his heart; and he was sensible and conscious to himself that he was no enemy to God, and could appeal to him, as the searcher of hearts, that he knew he loved him; nay, he could not believe that God reckoned him his enemy, when he had given such a testimony of him, and of his fear of him, that there was none like him; and when Job so strongly trusted in him for salvation, and believed he should enjoy him for ever: but his sense is, that God treated him, by afflicting him in the manner he did, as if he was one of his enemies; had he really been one, he could not have used him, he thought, more roughly and severely; so that, judging according to the outward appearance of things, it might be concluded, as it seems it was by his friends, that he was a wicked man, an hypocrite, an enemy to God and godliness; but whereas Job thought that God dealt with him as with an enemy, he was mistaken; since when God afflicts his people, he deals with them as with sons, Hebrews 12:7.

enemies-- (Job 13:24; Lamentations 2:5).