Rebuking the People of Hell, their admission of Their Wretchedness and their Request to be brought out of Hell
This is a rebuke from Allah to the people of Hell for the disbelief, sins, unlawful deeds and evil actions that they committed, because of which they were doomed. Allah says:
("Were not My Ayat recited to you, and then you used to deny them") meaning, `I sent Messengers to you, and revealed Books, and cleared the confusion for you, so you have no excuse.' This is like the Ayat:
وَهُمْ فِيهَا كَالِحُونَ And they will be disfigured therein - 23:104). The word is used for a person whose lips do not meet and leave his teeth fully exposed, which looks very ugly. It is said that the upper lip of a person consigned to Hell will be drawn up and his lower lip will be drawn down so that his teeth will remain visible at all times.
Tazkirul Quran
Maulana Wahiduddin KhanOn ayahs 104–107
As soon as man dies, he is separated from the present world and reaches a point of no-return. Now, he realises that the life Hereafter, which he had hitherto ignored, was in fact the real target in life. The possessions of the pre-death period were for the purpose of earning credit towards the life Hereafter and not as ends in themselves. So, after death, he will immediately want to be sent back to this world. But this will not be possible, because in accordance with the creation plan of God, every man is given only one chance. In the present world man relies on his friends and relatives, but on Judgement Day he will be all alone. There, only his good deeds will be of avail. Nothing else will save him.
Uthmani text of the Madinah mushaf (King Fahd Complex). Translation: Saheeh International. Tafsir via Quran.com.