Translation:

28. Say: "See ye? If Allah were to destroy me and those with me or if He bestows His Mercy on us yet who can deliver the Unbelievers from a grievous Penalty?"

Notes (Tafseer)

5589. The sceptics might say and do say to the righteous: "Ah well! if calamities come, they involve the good with the bed, just as you say that Allah showers His mercies on both good and evil!" The answer is: "Don't you worry about us: even supposing we are destroyed, with all who believe with us, is that any consolation to you? Your sins must bring on you suffering, and nothing can ward it off. If we get any sorrows or sufferings, we take them as a mere trial to make us better, for we believe in Allah's goodness and we put our trust in Him." See next verse.