Al-Anfal · 8:10

10. Allah made the reinforcement of the Muslims with angels a form of good news for them: that He was helping them against their enemies, reassuring their hearts that they would have victory over them. Victory does not come because of having great numbers of fighters, or having large amounts of weapons and preparations; rather, it comes only from Allah, Glory be to Him. Allah is Mighty in His power, no one has power over Him, and He is Wise in His law and His decree.