Verses 1-6: The Personal Conflict and Retaliation. Samson attempts to visit his wife but is refused by her father, leading to Samson's fiery retaliation by burning Philistine crops with foxes. The Philistines respond by burning Samson's wife and her father.
Verses 7-8: Samson's Vow and Victory. Samson vows vengeance and defeats the Philistines with great slaughter, then retreats to the rock of Etam.
Verses 9-13: The Philistines' Campaign and Judah's Betrayal. The Philistines invade Judah to capture Samson. The men of Judah bind Samson and hand him over to the Philistines.
Verses 14-17: Divine Empowerment and Samson's Triumph. The Spirit of the LORD empowers Samson to break free from his bonds and slay a thousand Philistines with a donkey's jawbone, naming the place Ramathlehi.
Verses 18-20: God's Provision and Samson's Judgeship. Samson, thirsty after the battle, calls on God who provides water miraculously. The chapter concludes by noting Samson's twenty-year judgeship over Israel during Philistine oppression.