Quran 2, Al-Baqara (The Cow) ⓘ

2:250And when they went into the field against Goliath and his hosts they said: Our Lord! Bestow on us endurance, make our foothold sure, and give us help against the disbelieving folk.

وَلَمَّا بَرَزُوا لِجَالُوتَ وَجُنُودِهِ قَالُوا رَبَّنَا أَفْرِغْ عَلَيْنَا صَبْرًا وَثَبِّتْ أَقْدَامَنَا وَانْصُرْنَا عَلَى الْقَوْمِ الْكَافِرِينَ