Surah Al-Kahf Ayahs #101 Translated in English

So they [i.e., Gog and Magog] were unable to pass over it, nor were they able [to effect] in it any penetration.

[Dhul-Qarnayn] said, "This is a mercy from my Lord; but when the promise of my Lord comes [i.e., approaches], He will make it level, and ever is the promise of my Lord true."

And We will leave them that day surging over each other, and [then] the Horn will be blown, and We will assemble them in [one] assembly.

And We will present Hell that Day to the disbelievers, on display -

Those whose eyes had been within a cover [removed] from My remembrance, and they were not able to hear.