had they truly intended to march forth to fight they would have certainly made some preparation for it. but allah was averse to their going forth so he made them lag behind and they were told stay behind with those that are staying behind.
ولو أرادوا الخروج لأعدوا له عدة ولكن كره الله انبعاثهم فثبطهم وقيل اقعدوا مع القاعدين