Victory comes from Allah alone, who supported His messengers, among them Jesus and the Prophet Muhammad ﷺ, as well as the believers. These verses recall that His help is near, mention the condition for deserving it, speak of victory and defeat, and describe those Allah forsakes: the wrongdoers and the arrogant, who will find neither protector nor helper.
Verses gathered from a topical index of the Quran, in Mushaf order; every verse is quoted in full.
And Allāh made it not except as [a sign of] good tidings for you and to reassure your hearts thereby. And victory is not except from Allāh, the Exalted in Might, the Wise -
If Allāh should aid you, no one can overcome you; but if He should forsake you, who is there that can aid you after Him? And upon Allāh let the believers rely.
And Allāh made it not but good tidings and so that your hearts would be assured thereby. And victory is not but from Allāh. Indeed, Allāh is Exalted in Might and Wise.