1 Samuel 13:11-12, 15

Samuel said, “What on earth are you doing?” Saul answered, “When I saw I was losing my army from under me, and that you hadn’t come when you said you would, and that the Philistines were poised at Micmash, I said, ‘The Philistines are about to come down on me in Gilgal, and I haven’t yet come before GOD asking for his help.’ So I took things into my own hands, and sacrificed the burnt offering.”

At that, Samuel got up and left Gilgal. What army there was left followed Saul into battle. They went into the hills from Gilgal toward Gibeah in Benjamin. Saul looked over and assessed the soldiers still with him—a mere six hundred!