وَاقْتَرَبَ الْوَعْدُ الْحَقُّ فَإِذَا هِيَ شَاخِصَةٌ أَبْصَارُ الَّذِينَ كَفَرُوا يَاوَيْلَنَا قَدْ كُنَّا فِي غَفْلَةٍ مِّنْ هَذَا بَلْ كُنَّا ظَالِمِينَ
and the true promise draws near [to its fulfillment], behold, the faithless will look on with a fixed gaze: ‘Woe to us! We have certainly been oblivious of this! Indeed, we have been wrongdoers!’
Agha Ali Puya Commentary
Commentary on Quran 21:97
[Pooya/Ali Commentary 21:97] The disbelievers will condemn and curse themselves for not believing in the day of judgement.