وَلَوْ عَلِمَ اللَّهُ فِيهِمْ خَيْرًا لَّأَسْمَعَهُمْ ۖ وَلَوْ أَسْمَعَهُمْ لَتَوَلَّوا وَّهُم مُّعْرِضُونَ (23)
(8:23) And had Allah known in them any good He would surely, have made them hear; but (being as they, are) even if He made them hear, they would have surely turned away in aversion. *18
*18). Such people have neither any love for the truth nor any desire to strive for it. Hence even if they were enabled by God to go forth to the battlefield. they would have turned on their heels at the very first sight of danger. That such people should be a part of the Muslim army might have led to greater harm than good.