And Allah has promised for the true believers.......

وَلَمَّا رَأَى الْمُؤْمِنُونَ الْأَحْزَابَ قَالُوا هَٰذَا مَا وَعَدَنَا اللَّهُ وَرَسُولُهُ وَصَدَقَ اللَّهُ وَرَسُولُهُ ۚ وَمَا زَادَهُمْ إِلَّا إِيمَانًا وَتَسْلِيمًا [٣٣:٢٢]

When the Believers saw the Confederate forces, they said: "This is what Allah and his Messenger had promised us, and Allah and His Messenger told us what was true." And it only added to their faith and their zeal in obedience.

﴿٢٢﴾

مِنَ الْمُؤْمِنِينَ رِجَالٌ صَدَقُوا مَا عَاهَدُوا اللَّهَ عَلَيْهِ ۖ فَمِنْهُمْ مَنْ قَضَىٰ نَحْبَهُ وَمِنْهُمْ مَنْ يَنْتَظِرُ ۖ وَمَا بَدَّلُوا تَبْدِيلًا [٣٣:٢٣]

Among the Believers are men who have been true to their covenant with Allah: of them some have completed their vow (to the extreme), and some (still) wait: but they have never changed (their determination) in the least:

﴿٢٣﴾

لِيَجْزِيَ اللَّهُ الصَّادِقِينَ بِصِدْقِهِمْ وَيُعَذِّبَ الْمُنَافِقِينَ إِنْ شَاءَ أَوْ يَتُوبَ عَلَيْهِمْ ۚ إِنَّ اللَّهَ كَانَ غَفُورًا رَحِيمًا [٣٣:٢٤]

That Allah may reward the men of Truth for their Truth, and punish the Hypocrites if that be His Will, or turn to them in Mercy: for Allah is Oft-Forgiving, Most Merciful.