﴿ فَٱرْتَقِبْ إِنَّهُم مُّرْتَقِبُونَ ﴾

“So wait thou [for what the future will bring]: behold, they, too, are waiting.”

So be on the look out await their destruction. Indeed they too are on the look out for your death — this was before the revelation of the command to struggle against them.