"There has already been for you a Sign in the two armies that met (in combat): One was fighting in the cause of Allah, the other resisting Allah; these saw with their own eyes Twice their number. But Allah doth support with His aid whom He pleaseth. In this is a warning for such as have eyes to see." Ali 'Imran 3:13 ⧉
Tafsir:
The battle of Badr in the fourteenth year of the prophethood was a worldly example of what will happen in the next world. Those who deny the truth greatly exceeded the believers in numbers and in strength. In fact, the believers were so few in number that they were powerless. In spite of this, those who denied the truth suffered a crushing defeat and the believers achieved a decisive victory. This is a clear proof that God is always on the side of the believers. In the face of such a great difference in resources, an extraordinary victory cannot be achieved without God’s succour. This serves as a demonstration from God that truth does not go unsupported. It is also a clear indication to those who deny the truth of how they are placed in this world. There are obvious signs in the words and deeds of the preacher that the Truth he preaches comes from God. But the arrogant find refuge in fine words to refute this. They live by false explanations, until finally they leave for the next world, only to learn that the words in which they had taken refuge were utterly meaningless from the standpoint of reality.