ثُمَّ يَوْمَ الْقِيَامَةِ يُخْزِيهِمْ
but Allah struck at the foundation of their building, and then the roof fell down upon them, from above them, and the torment overtook them from directions they did not perceive. Then, on the Day of Resurrection, He will disgrace them.
meaning, He will expose their scandalous deeds and what they used to hide in their hearts, and He will bring it out in the open. As He says,
يَوْمَ تُبْلَى السَّرَايِرُ
The Day when all the secrets will be (exposed and) examined. (86;9)
They will be displayed and made known, as found in the Two Sahihs, where Ibn Umar reported that the Messenger of Allah said;
يُنْصَبُ لِكُلِّ غَادِرٍ لِوَاءٌ يَوْمَ الْقِيَامَةِ عِنْدَ اسْتِهِ بِقَدْرِ غَدْرَتِهِ فَيُقَالُ هَذِهِ غَدْرَةُ فُلَنِ ابْنِ فُلَن
On the Day of Resurrection a banner will be set up by his backside for every deceitful person, (whose size is) in accordance with the amount of his deceit. It be said, "This is the one who deceived so-and-so, the son of so-and-so."
Thus, what they used to plot in secret will be made public. Allah will humiliate them before all of His creation, and the Lord will say to them, in rebuke and reprimand;
وَيَقُولُ أَيْنَ شُرَكَأيِيَ الَّذِينَ كُنتُمْ تُشَاقُّونَ فِيهِمْ
and will say;"Where are My (so-called) partners, those over which you caused so much discord!"
meaning, you fought and made enemies for their sake, so where are they now to help and save you!
هَلْ يَنصُرُونَكُمْ أَوْ يَنتَصِرُونَ
Can they help you or (even) help themselves! (26;93)
فَمَا لَهُ مِن قُوَّةٍ وَلَا نَاصِرٍ
Then he will have no power, nor any helper. (86;10)
When evidence and proof is established against them, and the Word (of Allah) is justified against them, and they will be unable to give any excuse, realizing that escape is impossible, then;
قَالَ الَّذِينَ أُوتُواْ الْعِلْمَ
Those who have been given the knowledge will say;
who are the leaders in this world and the Hereafter and who know about the truth in this world and the Hereafter - will say,
إِنَّ الْخِزْيَ الْيَوْمَ وَالْسُّوءَ عَلَى الْكَافِرِينَ
Indeed it is a Day of disgrace and misery for the disbelievers.
meaning, today those who disbelieved in Allah and worshipped others who have no power either to benefit or to harm them are now surrounded by disgrace and punishment