1 Samuel 14:13-23

13 And Jonathan went up, gripping with his hands and his feet, his servant going up after him; and the Philistines gave way before Jonathan when he made an attack on them, and his servant put them to death after him.
14 And at their first attack, Jonathan and his servant put to the sword about twenty men, all inside the space of half an acre of land.
15 And there was great fear in the tents and in the field and among all the men of the armed force, and the attackers were shaking with fear; even the earth was moved with a great shaking and there was a fear as from God.
16 And the watchmen of Saul, looking out from Geba in the land of Benjamin, saw all the army flowing away and running here and there.
17 Then Saul said to the people who were with him, Let everyone be numbered and let us see who has gone from us. And when they had been numbered, it was seen that Jonathan and his servant were not there.
18 And Saul said to Ahijah, Let the ephod come here. For he went before Israel with the ephod at that time.
19 Now while Saul was talking to the priest, the noise in the tents of the Philistines became louder and louder; and Saul said to the priest, Take back your hand.
20 And Saul and all the people with him came together and went forward to the fight: and every man's sword was turned against the man at his side, and there was a very great noise.
21 Then the Hebrews who had been with the Philistines for some time, and had gone up with them to their tents, turning round were joined to those who were with Saul and Jonathan.
22 And all the men of Israel who had taken cover in the hill-country of Ephraim, hearing that the Philistines had been put to flight, went after them, attacking them.
23 So the Lord made Israel safe that day: and the fight went over to Beth-aven.