Surah Ali 'Imran — Ayah 147 (3:147)
وَمَا كَانَ قَوۡلَهُمۡ إِلَّآ أَن قَالُواْ رَبَّنَا ٱغۡفِرۡ لَنَا ذُنُوبَنَا وَإِسۡرَافَنَا فِيٓ أَمۡرِنَا وَثَبِّتۡ أَقۡدَامَنَا وَٱنصُرۡنَا عَلَى ٱلۡقَوۡمِ ٱلۡكَٰفِرِينَ ١٤٧
English translation (Saheeh International)
And their words were not but that they said, "Our Lord, forgive us our sins and the excess [committed] in our affairs and plant firmly our feet and give us victory over the disbelieving people."
Brief commentary
When they were given these trials, these patient people asked Allah to forgive them for their disobedience and for overstepping the limits in what they did, to make their feet firm when they meet their enemy, and to help them against those who disbelieved in Him.