1 Samuel 14:12-14

14:12 Then the men of the garrison said to Jonathan and his armor bearer, “Come on up to us so we can teach you a thing or two!” Then Jonathan said to his armor bearer, “Come up behind me, for the Lord has given them into the hand of Israel!”

14:13 Jonathan crawled up on his hands and feet, with his armor bearer following behind him. Jonathan struck down the Philistines, while his armor bearer came along behind him and killed them. 14:14 In this initial skirmish Jonathan and his armor bearer struck down about twenty men in an area that measured half an acre.