English Translation of Al-Quran .Surah Al-Kahf [The Cave] Ayat 98. Dhul-Qarnain) said: "This is a mercy from my Lord, but when the Promise of my Lord comes, He shall level it (this wall) down to the ground. And the Promise of my Lord is ever true." Ayat 99. And on that Day [i.e. the Day Ya'juj and Ma'juj (Gog and Magog) will come out], We shall leave them to surge like waves on one another, and the Trumpet will be blown, and We shall collect them all together. [Tafseer] After all the effort which Dhu al Qarnain has made for their protection, he claims no credit for himself beyond that of discharging his duty as a ruler. He turns their attention to Allah, Who has provided the ways and means by which they can be helped and protected. But all such human precautions are apt to become futile. The time must come when they will crumble into dust. Allah has said so in His Revelation; and His word is true. And so the spiritual lesson from the third episode is: Take human precautions and do all in your power to protect yourselves from evil. But no protection is complete unless you seek the help and grace of Allah. The best of our precautions must crumble to dust when the appointed Day arrives. And so we pass on to the Last Days before the Great Summons comes from Allah. All human barriers will be swept away. There will be tumultuous rushes. The Trumpet will be blown, and the Judgment will be set on foot.