The benefits of the saying of Allah the Exalted: ((And they will say, "Oh, our misery! This is the Day of Judgment, the Day of Decision about which you used to lie."))

Among the benefits of the verses is that these deniers will call out on the Day of Resurrection for woe, calamity, and destruction, as they said: Just as Allah the Exalted said in another verse:
Among the benefits of the verses is the realization of this statement, that it is a reality as present as the here, as He the Exalted said: He expressed the future in the past tense to indicate the certainty of its occurrence.
Among the benefits of the verses is that people will be gathered on the Day of Resurrection and recompensed for their deeds. This is derived from His saying: The outcome for creation will be that they are gathered on the Day of Resurrection, that they are recompensed for their deeds, and that this recompense is final, with no deed after it and no delay before it, as He said:
Among the benefits of the verses is that the Day of Resurrection is the Day of Decision, meaning judgment between people and the distinction of some from others, as He said:
Among the benefits of the verses is also the confirmation of these deniers, as He said: The aspect of confirmation is that when a person witnesses what he used to deny, he will say to the one who led him to this denial or who agreed with him: "Look, you used to say that it was a lie and would not happen. Look now, it has happened." This will increase his regret and remorse for not believing in this Day.