Then Yajuj and Majuj could neither climb over it, and nor could make a hole in it.
Thus, they could not climb it, nor could they bore holes in it.
Thereafter they could neither scale it, nor could they pierce it
So they were not able to scale it, nor could they make a hole in it
So they did not rise/diffuse/spread over (it, nor) that they mount/ascend it , and they were not able (of) piercing/penetration for it
….Thus he built a dam (as a barrier between the two parties involved) that they could neither climb it nor make a hole in it
Therefore Yajuj and Majuj were neither able to surmount it, nor could they pierce it
So they (Gog and Magog) were not able to scale it, nor were they able to dig through it
Then they (Gog and Magog) did not have the ability to scale it, nor could they acquire the capability to bore through it
So (there was built the rampart which) they (- Gog and Magog) could neither scale nor they had the strength to cause a breach through it
So they (Yajooj and Majooj (Gog and Magog)) were made powerless to scale it or dig through it
In that way, (the enemies) were made powerless to scale it or dig through it.
They neither managed to climb over nor were they able to tunnel through it.
And thus their enemies were unable to scale [the rampart], nor could they dig their way through it.
So they were neither able to pass over it nor penetrate through it!
So they (Gog and Magog) were not able to scale it nor could they make a hole in it.
"In consequence, they -the tribes- could not escalade it nor were they able to make their way through it by digging"
Thus they all (communities of Yajooj and Majooj) were not able to climb it nor were they able to pierce it.