﴿ وَإِذْ يَعِدُكُمُ ٱللَّهُ إِحْدَى ٱلطَّآئِفَتَيْنِ أَنَّهَا لَكُمْ وَتَوَدُّونَ أَنَّ غَيْرَ ذَاتِ ٱلشَّوْكَةِ تَكُونُ لَكُمْ وَيُرِيدُ ٱللَّهُ أَن يُحِقَّ ٱلْحَقَّ بِكَلِمَٰتِهِۦ وَيَقْطَعَ دَابِرَ ٱلْكَٰفِرِينَ ﴾

“And, lo, God gave you the promise that one of the two [enemy] hosts would fall to you: and you would have liked to seize the less powerful one, whereas it was God's will to prove the truth to be true in accordance with His words, and to wipe out the last remnant of those who denied the truth -”

And remember when God promised you one of the two parties either the caravan or the band of Meccan fighters that it should be yours and you longed you were wishing that other than the armed one that is other than the fighting one with the weapons in other words you longed that the caravan should be yours because it had fewer men and less reinforcements than the band of Mecca fighters; but God willed that the truth be realised He willed to manifest it by His preceding words that Islam should triumph; and to cut the root of the disbelievers to the very last man by extirpating them and so He commanded you to fight against the band.