They prevented me in the day of my calamity: but the LORD was my stay.
They prevented me - i:e., surprised me.
In the day of my calamity. Saul, with 3,000 men, encamped at the mouth of the very cave in the sides of which David and his handful of men remained (1 Samuel 24:3): it was then that David called himself (Psalms 18:14) "a dead dog ... a flea."