The Koran is filled with depictions of hell and threats of torture. All non Muslims go to hell. Allah personally oversees this torture. Allah is a god that not only lives in heaven, but also resides in hell, according to the Koran.

Here he brags that he will burn unbelievers' skins off, give them new skins, in order to burn them off again:

We shall soon cause those who disbelieve in our signs to enter the fire. As often as their hides are burnt up, we shall give them in exchange other hides that they may feel the torment keenly. (4:56)

Allah himself kindles the fire:

And what will make you realize what the crushing disaster is? It is the fire kindled by Allah (104:5-6)

Allah presides over hell and commands the angels to torture:
O ye who believe! Save yourselves and your families from a fire whose fuel is men and stones; over it are angels stern and strong, they do not disobey Allah in what He commands them, and do as they are commanded. (66:6)

Allah asks to be left alone to torture unbelievers and those who have prospered in life:
Leave Me alone to deal with those in possession of the good things in life, who deny the Truth; and bear with them for a little while. Surely with Us are heavy fetters and a flaming fire, and food that chokes and a painful punishment (73:11-13)
Then leave Me alone with such as reject this Message; by degrees shall We punish them from directions they perceive not. (68:44)

Allah asks to be left alone again to torture those to who were not satisfied with what he gave them:

Leave Me alone, (to deal) with the (creature) whom I created alone! To whom I granted resources in abundance, And sons to be by his side! To whom I made life smooth and comfortable! Yet he is greedy-that I should add (yet more):- By no means! For to Our Signs he has been refractory! Soon will I visit him with a mount of calamities! (74:11-18)

Allah prepares fire for his victims, and takes joy in hearing them cry for help. To which he will respond with more torture:
·         We have prepared for the wrongdoers a fire which already covers them like a canopy. If they cry for help their only help will be boiling water like molten brass which will scorch their faces. A terrible drink and an evil resting place! (18:29))

Allah curses those who insult him or Mohammad:
·         Those who insult Allah and His Messenger – Allah has cursed them in this World and in the Hereafter, and has prepared for them a humiliating torment (33:57)

Those who reject the Koran will be dragged into the boiling water and fire:

Those who reject the Book and the revelations with which we sent our messengers: But soon shall they know—when the yokes shall be round their necks, and the chains: They shall be dragged along- in the boiling fetid fluid; then in the fire shall they be burned. (40:70-72)

Then peace to you from those on the right hand. And if he is one of the rejecters, the erring ones, He shall have an entertainment of boiling water (56:91-93)

Who will drag unbelievers to hell? Angels:

· The tree of Zaqqum is the food of the sinful, like dregs of oil it will boil in their bellies, like the boiling of scalding water. The angels will be commanded: Seize this sinful one, and drag him into the midst of the blazing fire, then pour upon his head the torment of boiling water. (44:43-48)

Angels are the violent guardians of hell:

And We have set none but angels as Guardians of the Fire; and We have fixed their number only as a trial for Unbelievers (74:31)

I swear by the angels who violently pull out the souls of the wicked, (79:1)

Allah will smooth the way to misery:

But he who is a greedy miser and thinks himself self-sufficient, And disbelieveth in goodness; We will indeed make smooth for him the path to Misery; Nor will his wealth profil him when he falls headlong (into the Pit) (92:5-11)

Allah the Hater:

Certainly Allah’s hatred of you when you were called upon to the faith and you rejected, is much greater than your hatred of yourselves. (40:10)

Allah the deceiver:

Surely the hypocrites strive to deceive Allah, and He shall retaliate by deceiving them. (4:142 )

Allah the schemer:

Behold this is the Word that is decisive. It is not a thing for amusement. As for them, they are but plotting a scheme. And I am planning a scheme. (86:13-16)

Allah the Lord of the Fire:

Those who were proud say: Lo! we are all (together) herein. Lo! Allah hath judged between His slaves. And those in the Fire say unto the guards of hell: Entreat your Lord that he relieve us of a day of the torment. (40:48-49)

Burn Baby Burn:

Verily, the Doom of thy Lord will indeed come to pass;- There is none can avert it;- On the Day when the firmament will be in dreadful commotion. And the mountains will fly hither and thither. Then woe that day unto the deniers That play (and paddle) in shallow trifles. The day on which they shall be driven away to the fire of hell with violence. "This:, it will be said, "Is the Fire,- which ye were wont to deny! Is this magic, or do ye not see? Burn ye therein: the same is it to you whether ye bear it with patience, or not: Ye but receive the recompense of your (own) deeds." (52:7 -16)