Abbas - Tanwîr al-Miqbâs min Tafsîr Ibn ‘Abbâs
(Those who deny the Scripture) the Qur'an (and that wherewith we send Our messengers) of Scriptures. (But they will come to know) on the Day of Judgement what will be done to them. This is a threat to them,
those who deny the Book, the Qur’ān, and that wherewith We have sent Our messengers, in the way of the affirmation of [God’s] Oneness and [belief in] the Resurrection — and these [deniers] are the Meccan disbelievers. But they will come to know, the punishment for their denials;
(Those who deny the Book, and that with which We sent Our Messengers) means, guidance and clear proof.
(they will come to know.) This is a stern warning and clear threat from the Lord to these people. This is like the Ayah:
وَيْلٌ يَوْمَئِذٍ لِّلْمُكَذِّبِينَ
(Woe that Day to the deniers!) (77:15)
إِذِ الاٌّغْلَـلُ فِى أَعْنَـقِهِمْ والسَّلَـسِلُ
(When iron collars will be rounded over their necks, and the chains.) means, the chains will be attached to the iron collars, and the keepers of Hell will drag them along on their faces, sometimes to the boiling water, and sometimes to the Fire. Allah says:
(This is the Hell which the criminals denied. They will go between it and the fierce boiling water!) (55:43-44). After describing how they will eat Zaqqum (a bitter tree of Hell) and drink Hamim (boiling water), Allah says:
ثُمَّ إِنَّ مَرْجِعَهُمْ لإِلَى الْجَحِيمِ
(Then thereafter, verily, their return is to the flaming fire of Hell.) (37:68), And Allah says:
(Then moreover, verily, -- you the erring-ones, the deniers (of Resurrection)! You verily, will eat of the trees of Zaqqum. Then you will fill your bellies therewith, and drink boiling water on top of it. And you will drink (that) like thirsty camels! That will be their entertainment on the Day of Recompense!) (56: 41-44, 51-56),
(Verily, the tree of Zaqqum will be the food of the sinners. Like boiling oil, it will boil in the bellies, like the boiling of scalding water. (It will be said:) ''Seize him and drag him into the midst of blazing Fire, then pour over his head the torment of boiling water. Taste you (this)! Verily, you were (pretending to be) the mighty, the generous! Verily, this is that whereof you used to doubt!'') (44:43-50) i.e., this will be said to them to rebuke and ridicule them.
(Then it will be said to them: "Where are (all) those whom you considered partners -- besides Allah'') means, it will be said to them, `where are the idols whom you used to worship instead of Allah Can they help you today'
قَـالُواْ ضَـلُّواْ عَنَّا
(They will say: "They have vanished from us...'') mean, they have gone away and they cannot do anything for us.'
بَل لَّمْ نَكُنْ نَّدْعُواْ مِن قَبْلُ شَيْئاً
(Nay, we did not invoke (worship) anything before. ) means, they will deny that they worshipped them. This is like the Ayah:
(That was because you had been exulting in the earth without any right, and that you used to rejoice extremely.) means, the angels will say to them, `what you are suffering now is your recompense for your exulting in the earth without any right, and for your extravagance.'
(Enter the gates of Hell to abide therein, and (indeed) what an evil abode of the arrogant!) means, what a terrible abode and final destination, filled with humiliation and severe punishment for those who arrogantly ignored the signs of Allah and refused to accept His proof and evidence. And Allah knows best.
Maududi - Sayyid Abul Ala Maududi - Tafhim al-Qur'an
That is, "Have you not understood even after the above discourse what is the real source of these people's misunderstanding and misconduct, and what has caused them to go astray? "(One should note that the addressee hire is not the Holy Prophet but every such person who reads these verses or hears them read).
This is the real cause of their going astray Their denial of the Qur'an and the teachings brought by the Messenger of Allah and their resisting by disputation the Revelations of Allah instead of pondering over them seriously, was the basic cause, which has led them astray and exhausted all possibilities of their adopting the Right Way.
That is, "When compelled by the intensity of thirst they will ask for water, the keepers of Hell will drag them by the chains towards the springs of boiling water, and when they will have drunk from them, they will drag them back to be cast into the fire of Hell. "
That is, "If they really were gods or associates in Godhead, and you worshiped them in the hope that they would help you in the evil time, then why don't they come to rescue you now?"
They do not mean to say, "We did not associate them with God in the world," but they mean: "Now we have understood well that those whom we invoked in the world, were nothing and mere nonentities."
That is, "You not only followed that which was untrue and false, but you became so enamored of the untruth that when the Truth was presented before you, you paid no heed to it, but continued to exult in yow worship of the falsehood.
That is, "You should have patience at what those people say and do, who arc opposing you by disputation and wrangling and want to defeat you by mean devices."
That is, "It is not necessary that We should punish every such person who has tried to harm you, in this world and during yow lifetime. Whether a person receives his punishment here or not, he cannot in any case escape Ow grasp: he has to return to Us after death. Then he will receive full punishment of his misdeeds."