If you [disbelievers] seek the decision [i.e., victory] - the decision [i.e., defeat] has come to you. And if you desist [from hostilities], it is best for you; but if you return [to war], We will return, and never will you be availed by your [large] company at all, even if it should increase; and [that is] because Allāh is with the believers.
If you ask O idolaters, for the punishment and might of Allah to fall upon the wrongdoers who overstep the limits, then Allah has already made what you asked afflict you, sending down on you what was a lesson for you and for the mindful. If you stop asking for this it would be better for you, so that He might give you time, not giving you what you deserve immediately. But if you return to asking for a judgement and fighting the believers, Allah would also return by afflicting you with punishment and helping the believers. Your people and helpers would not be of any good to you, even if they are many and well prepared and the believers were few in number. Allah is with the believers, helping and supporting them, and whomever Allah assists, then no one will be able to defeat them.