Translation:

58. "Or (lest) it should say when it (actually) sees the Penalty: `If only I had another chance I should certainly be among those who do good!'

Notes (Tafseer)

4329. In the third place, when we stand face to face with the Penalty of our own deeds, we might say, 'I wish I had another chance'. But not one, but many, chances are being given, especially when we are told (verse 53 above): 'Despair not of the Mercy of Allah: for Allah forgives all sins: for He is Oft-Forgiving, Most Merciful'. The force of 'lest it should say' here is the same as explained in the last note.