One day Jonathan tells his armor-bearer to cross over to the Philistine outpost on the other side of the pass, without telling his father. Saul is under a pomegranate tree at the edge of Gibeah with about six hundred men and the priest Ahijah. Jonathan says perhaps the Lord will work for them, for nothing hinders him from saving by many or by few. They agree that if the Philistines say come up, it will be a sign that the Lord has given them into their hand. The Philistines say come up, and between them Jonathan and his armor-bearer kill about twenty men. Panic spreads in the camp, the earth trembles and it is a terror from God.
Saul's watchmen see the Philistine multitude melting away. Saul takes a count and Jonathan and his armor-bearer are missing. Saul and the people go to the battle and find the Philistines fighting one another. The Hebrews who had been with them turn to Israel, and those hiding in the hills of Ephraim join the pursuit. So the Lord saves Israel that day.
Saul makes a rash oath: cursed be anyone who eats before evening. The people are exhausted. Jonathan, who did not hear it, tastes honey from a honeycomb in the forest and his eyes brighten. As evening falls, the hungry people slaughter animals and eat the meat with the blood, and Saul builds an altar.
Saul wants to pursue the Philistines by night, but God does not answer. It is determined that someone has sinned, and by lot Jonathan is singled out, who explains that he tasted the honey. Saul says he must die, but the people defend Jonathan, who has worked this great salvation, and ransom him. The chapter ends with a summary of Saul's wars and family.