When Saul was afraid of the Philistines on whom he had declared a war, he froze and his army therefore hid. One reason they were afraid was that even though there were 3,000 Israelis, only Saul and his son Jonathan had swords!
Jonathan decided to use his sword. He and his armor bearer attacked the nearest group of Philistines. After they killed half an acre of them, they had 21 swords.
What created a tide of courage in the Israeli military, though, was that Yahweh terrorized the Philistines and routed them. Israel rose up and pursued them victoriously.
On days, you have to step into the impossible to see Yahweh step into the miraculous.