22. As this world has been used here in contrast to the deniers; the righteous here implies the people who refrained from denying the Hereafter and accepted it and passed their life in the world with the belief that in the Hereafter they would have to render an account of their word and deed and their conduct and character.
23. Here this sentence means that one of their afflictions. as mentioned above, will be that they will be standing as culprits in the plain of Resurrection. Their crimes will have been proved and established openly and they will not be in a position even to open their mouths to put forward a plea in self defense, and shall ultimately become fuel of Hell. Their other affliction, and by far the worse will be that they will see the same believers enjoying themselves in Paradise, whom they had been opposing and resisting and mocking throughout their lives as foolish, narrow-minded, mean and old fashioned people.
24. In conclusion, these words are being addressed not only to the disbelievers of Makkah but to all disbelievers of the world.
25. For a while: In their brief life of the world.
26. Bowing before Allah: does not only imply worshipping Him but also means believing in the Messenger (peace be upon him) sent by Allah and in the Book revealed by Him and following and obeying His commands.
27. That is, the greatest message that could distinguish the truth from falsehood for man and show him right guidance, has been sent down in the shape of the Quran. If a person does not believe even after reading it or hearing it read, what else after this can show him the correct guidance?