Quran 18:97
فَمَا اسْطَاعُوا أَنْ يَظْهَرُوهُ وَمَا اسْتَطَاعُوا لَهُ نَقْبًا
Thus (Gog and Magog) could neither climb over it nor dig a hole through (the rampart).
So they could neither scale it, nor could they make a hole in it.
Therefore Yajuj and Majuj were neither able to surmount it, nor could they pierce it.
So they were unable either to scale it or pierce it.
So not they were able to scale it and not they were able in it (to do) any penetration.
Thus they Were not able to mount it, nor Were they able to burrow through it.
So they [Ya'juj and Ma'juj (Gog and Magog)] were made powerless to scale it or dig through it.
Such was the rampart that Gog and Magog could not scale, nor could they pierce it.
(Thus he constructed the barrier which) neither Gog nor Magog were able to climb nor were they able to dig a tunnel through the iron and brass barrier.
So they were not able to scale it nor could they make a hole in it.
And (Gog and Magog) were not able to surmount, nor could they pierce (it).
Thereafter they could neither scale it, nor could they pierce it.
So Gog and Magog were unable to pass over it, nor were they able [to effect] in it any penetration.
So they were unable to climb it, and they could not penetrate it.
So they [Gog and Magog] were not able to scale it, nor were they able to bore through it,
Thus were they made powerless to scale it or to dig through it.