What does « Pain / Suffering » mean in the Quran?

Indeed, those who exchange the covenant of Allah and their [own] oaths for a small price will have no share in the Hereafter, and Allah will not speak to them or look at them on the Day of Resurrection, nor will He purify them; and they will have a painful punishment.

Indeed, those who disbelieve and die while they are disbelievers - never would the [whole] capacity of the earth in gold be accepted from one of them if he would [seek to] ransom himself with it. For those there will be a painful punishment, and they will have no helpers.

Indeed, those who purchase disbelief [in exchange] for faith - never will they harm Allah at all, and for them is a painful punishment.

And never think that those who rejoice in what they have perpetrated and like to be praised for what they did not do - never think them [to be] in safety from the punishment, and for them is a painful punishment.

But repentance is not [accepted] of those who [continue to] do evil deeds up until, when death comes to one of them, he says, "Indeed, I have repented now," or of those who die while they are disbelievers. For them We have prepared a painful punishment.

And do not weaken in pursuit of the enemy. If you should be suffering - so are they suffering as you are suffering, but you expect from Allah that which they expect not. And Allah is ever Knowing and Wise.

Give tidings to the hypocrites that there is for them a painful punishment -

And [for] their taking of usury while they had been forbidden from it, and their consuming of the people's wealth unjustly. And we have prepared for the disbelievers among them a painful punishment.

And as for those who believed and did righteous deeds, He will give them in full their rewards and grant them extra from His bounty. But as for those who disdained and were arrogant, He will punish them with a painful punishment, and they will not find for themselves besides Allah any protector or helper.

Indeed, those who disbelieve - if they should have all that is in the earth and the like of it with it by which to ransom themselves from the punishment of the Day of Resurrection, it will not be accepted from them, and for them is a painful punishment

They have certainly disbelieved who say, "Allah is the third of three." And there is no god except one God. And if they do not desist from what they are saying, there will surely afflict the disbelievers among them a painful punishment.

O you who have believed, Allah will surely test you through something of the game that your hands and spears [can] reach, that Allah may make evident those who fear Him unseen. And whoever transgresses after that - for him is a painful punishment.

And leave those who take their religion as amusement and diversion and whom the worldly life has deluded. But remind with the Qur'an, lest a soul be given up to destruction for what it earned; it will have other than Allah no protector and no intercessor. And if it should offer every compensation, it would not be taken from it. Those are the ones who are given to destruction for what they have earned. For them will be a drink of scalding water and a painful punishment because they used to disbelieve.

And to the Thamud [We sent] their brother Salih. He said, "O my people, worship Allah; you have no deity other than Him. There has come to you clear evidence from your Lord. This is the she-camel of Allah [sent] to you as a sign. So leave her to eat within Allah 's land and do not touch her with harm, lest there seize you a painful punishment.

And [remember] when they said, "O Allah, if this should be the truth from You, then rain down upon us stones from the sky or bring us a painful punishment."

And [it is] an announcement from Allah and His Messenger to the people on the day of the greater pilgrimage that Allah is disassociated from the disbelievers, and [so is] His Messenger. So if you repent, that is best for you; but if you turn away - then know that you will not cause failure to Allah. And give tidings to those who disbelieve of a painful punishment.

O you who have believed, indeed many of the scholars and the monks devour the wealth of people unjustly and avert [them] from the way of Allah. And those who hoard gold and silver and spend it not in the way of Allah - give them tidings of a painful punishment.

If you do not go forth, He will punish you with a painful punishment and will replace you with another people, and you will not harm Him at all. And Allah is over all things competent.

And among them are those who abuse the Prophet and say, "He is an ear." Say, "[It is] an ear of goodness for you that believes in Allah and believes the believers and [is] a mercy to those who believe among you." And those who abuse the Messenger of Allah - for them is a painful punishment.

They swear by Allah that they did not say [anything against the Prophet] while they had said the word of disbelief and disbelieved after their [pretense of] Islam and planned that which they were not to attain. And they were not resentful except [for the fact] that Allah and His Messenger had enriched them of His bounty. So if they repent, it is better for them; but if they turn away, Allah will punish them with a painful punishment in this world and the Hereafter. And there will not be for them on earth any protector or helper.

Those who criticize the contributors among the believers concerning [their] charities and [criticize] the ones who find nothing [to spend] except their effort, so they ridicule them - Allah will ridicule them, and they will have a painful punishment.

And those with excuses among the bedouins came to be permitted [to remain], and they who had lied to Allah and His Messenger sat [at home]. There will strike those who disbelieved among them a painful punishment.

To Him is your return all together. [It is] the promise of Allah [which is] truth. Indeed, He begins the [process of] creation and then repeats it that He may reward those who have believed and done righteous deeds, in justice. But those who disbelieved will have a drink of scalding water and a painful punishment for what they used to deny.

And Moses said, "Our Lord, indeed You have given Pharaoh and his establishment splendor and wealth in the worldly life, our Lord, that they may lead [men] astray from Your way. Our Lord, obliterate their wealth and harden their hearts so that they will not believe until they see the painful punishment."

Even if every sign should come to them, until they see the painful punishment.