Surah Al-Baqarah (The Cow), Verse 250

وَلَمَّا بَرَزُوْا لِجَالُوْتَ وَجُنُوْدِهٖ قَالُوْا رَبَّنَاۤ اَفْرِغْ عَلَیْنَا صَبْرًا وَّثَبِّتْ اَقْدَامَنَا وَانْصُرْنَا عَلَی الْقَوْمِ الْكٰفِرِیْنَ ۟

Wa lammaa barazoo liJaaloota wa junoodihee qaaloo Rabbanaaa afrigh 'alainaa sabranw wa sabbit aqdaamanaa wansurnaa 'alal qawmil kaafireen

“When they advanced to meet Goliath and his forces, they prayed: "Our Lord! Pour out constancy on us and make our steps firm: Help us against those that reject faith."”

Quran 2:250 (Yusuf Ali Translation)