They schemed their schemes, and God is fully aware of their schemes. Indeed, their schemes were sufficient to erase mountains.
وَقَد مَكَروا مَكرَهُم وَعِندَ اللَّهِ مَكرُهُم وَإِن كانَ مَكرُهُم لِتَزولَ مِنهُ الجِبالُ
wa qad makaroo makrahum wa ‘indal laahi makruhum wa in kaana makruhum litazoola minhul jibaal