1 Samuel 14:13-15

13Jonathan climbed up using his hands and feet, with his armor-bearer behind him. Jonathan cut them down, and his armor-bearer followed and finished them off.

14In that first assault Jonathan and his armor-bearer struck down about twenty men in a half-acre field.

15Terror spread through the Philistine camp and the open fields to all the troops. Even the garrison and the raiding parties were terrified. The earth shook, and terror spread from God.