Verses 1-5: Israel's Sin at Shittim. The chapter opens with Israel engaging in sexual immorality and idolatry with Moabite women, leading to worship of Baalpeor and provoking God's anger. Moses is commanded to execute judgment on the leaders involved to appease God's wrath.
Verses 6-9: Phinehas’s Zeal and the Plague Stopped. A public act of defiance by an Israelite man and a Midianite woman prompts Phinehas, the priest’s grandson, to intervene with zeal, killing both offenders. This act stops the plague that had already claimed 24,000 lives.
Verses 10-13: Divine Commendation and Covenant with Phinehas. God praises Phinehas for his zeal, granting him a covenant of peace and an everlasting priesthood, highlighting the reward for faithful zeal in defense of God's holiness.
Verses 14-18: Identification of the Offenders and Command to Vex Midian. The chapter concludes by naming the slain individuals, Zimri and Cozbi, and commands Israel to attack the Midianites for their role in leading Israel into sin.