﴿ ٱصْلَوْهَا فَٱصْبِرُوٓا۟ أَوْ لَا تَصْبِرُوا۟ سَوَآءٌ عَلَيْكُمْ ۖ إِنَّمَا تُجْزَوْنَ مَا كُنتُمْ تَعْمَلُونَ ﴾

“Endure it [now]! But [whether you] bear yourselves with patience or without patience, it will be the same to you: you are but being requited for what you were wont to do.””

يَوْمَ تَمُورُ‌ السَّمَاءُ مَوْرً‌ا (...the Day when the sky will tremble, a horrible trembling, ...52:9) The lexicographical denotation of the word mawr is violent shaking, or movement caused by unrest. This verse describes the violent movement of the heavens on the Day of Resurrection.