Then woe, that Day, to the deniers,
ويل يومئذ للمكذبين [At-Tur 52:11]
meaning regret and punishment. So here, "O our woe" means "O our regret and punishment," it has arrived, so this is its time. It is also possible, as the author said, that the "ya" is for emphasis. But if someone asks, does "ya" come for emphasis? The answer is yes. If we are asked for an example where only emphasis is possible, we say, for example, His saying, the Exalted:
I wish my people could know
يا ليت قومي يعلمون [Ya-Sin 36:26]
So here, "ya" is for emphasis, because "ya" does not enter upon letters, but only upon nouns, yet it was used here for emphasis. And his saying,
Our woe
ويلنا
our destruction. But "wail," as I said, is more specific than mere destruction; rather, it is regret and punishment. It is a noun with no verb of its own form, but from its meaning. If it is from its meaning, and we interpreted "wail" as destruction, how do we estimate the verb? We destroyed, our destruction. Thus, this is the Day of Judgment. The author said, and the angels say to them, this is the Day of Judgment. So the commentator, may Allah have mercy on him, made "this is the Day of Judgment" from the speech of the angels. But the correct view is that it is from their speech, meaning from the speech of these deniers. That is, on that day they acknowledge the Day of Judgment, but their acknowledgment does not benefit them at that time. So they acknowledge this day when they see it, saying, "This is the Day of Judgment." The referent is the time in which they are, that present day. And "deen" means recompense. Know that "deen" is used for recompense, and sometimes for action. So His saying, the Exalted,
For you is your religion, and for me is my religion."
لكم دينكم ولي دين [Al-Kafirun 109:6]
the intended meaning is action. And His saying, the Exalted,
what can make you know what is the Day of Recompense? (19) It is the Day when a soul will not possess for another soul [power to do] a thing
وما أدراك ما يوم الدين يوم لا تملك نفس لنفس شيئا [Al-Infitar 82:18-19]
the intended meaning of "deen" is recompense. Good, and here,
This is the Day of Judgment
هذا يوم الدين
the intended meaning is recompense, meaning this is the day of recompense. And "deen," as it is used for recompense, is also used for action, as I said. From this is their saying, "as you do, so shall you be done to," meaning as you act, so shall you be recompensed. He said, "This is the Day of Judgment."