Quran 3:126 — The Amramites (Ali-'Imran)

GOD thus informs you, in order to give you good news, and to assure your hearts. Victory comes only from GOD, the Almighty, Most Wise.

[3:125] Indeed, if you steadfastly persevere and maintain righteousness, then they attack you suddenly, your Lord will support you with five thousand* angels, well trained.

[3:127] He thus annihilates some disbelievers, or neutralizes them; they always end up the losers.