1 Samuel 14:13-15

So they climbed up using both hands and feet, and the Philistines fell before Jonathan, and his armor bearer killed those who came behind them. They killed some twenty men in all, and their bodies were scattered over about half an acre. Suddenly, panic broke out in the Philistine army, both in the camp and in the field, including even the outposts and raiding parties. And just then an earthquake struck, and everyone was terrified.