Or [lest] he should say [out of profound grief]...
Or [lest] he should say [out of profound grief]: “If only Allah has guided me, I should indeed have been among the righteous.” 58. Or [lest] he should say when he sees the torment: “If only I had another chance [to return to the world] then I should be among the good doers.” On the Resurrection Day, sinners aim to acquit themselves of their sins. On the Day of Resurrection the sinful wish that they could return to the world in order to do good [to himself and others].
The blessed Verse in question says: “Lest that the sinful say: ‘Had God guided me, I would have been among the righteous.’” Such words are apparently uttered upon reckoning, noticing that some people proceed toward Paradise enjoying all Bounties for their righteous good deeds. He also wishes that he could accompany them to Paradise. Verse 60 is saying that upon experiencing Divine Chastisement, he wishes that he could return to the world to become one of the righteous.
Upon treading the way to Hell, he notices the blazing fire and the excruciating torment, he sighs wishing that he could be permitted to return to the world and compensate for his sins through committing righteous deeds and become one of the good doers.
Indeed, there came unto you My Verses but you denied them and were vain and were among disbelievers. The sinful express some words on the Day of Resurrection: Confessing to neglect Confessing to derision Wishing for guidance Wishing for returning to the world. God Almighty accepts his confessions but concerning the third word, the blessed Verse in question says that God Almighty provided you with Guidance but he denied it.
An answer provided for the fourth word is to be found elsewhere: “Even if they are returned [to the world] they shall still be wrong doers.” A reply is provided for the second word as per which Divine Verses came unto him; however, he denied them and was vain and one of the disbelievers. He is saying that had Divine Guidance came unto him, he would have been one of the righteous.