وَلِكُلِّ أُمَّةٍ أَجَلٌ ۖ فَإِذَا جَآءَ أَجَلُهُمْ لَا يَسْتَأْخِرُونَ سَاعَةً ۖ وَلَا يَسْتَقْدِمُونَ
10:50; 15:6; 16:62; 35:46.
Important Words:
یستقدمون (get ahead) is derived from قدم i.e. he preceded; or he came before; or he headed (someone else). استقدم القوم means, he preceded the people, or he went ahead of the people, or he went before them (Lane & Aqrab). As one who gets ahead of a thing virtually leaves it behind, therefore, the idea in یستقدمون (get ahead) is that of escaping.
یستأخرون (remain behind) is derived from اخر. They say استأخرالقوم i.e. he remained behind the people. استأخر also means, he or it was put behind or put off or delayed (Lane & Aqrab). As one who remains behind a thing virtually puts the thing off, therefore, the idea in یستأخرون (remain behind) is that of putting off.
Commentary:
The verse means that when the time fixed for the punishment of a people comes, it cannot be averted. Disbelievers, who have incurred it, can neither escape it nor put it off by a single moment.