Cozbi כזבי בת צור is a biblical character in . She was the daughter of Zur

Zur

Zur occurs five times in the King James Bible.The first mention is Cozbi, the daughter of Zur. She was slain in Numbers 25:15. This is the pericope where Numbers 25:1 tells us that Israel abode in Shittim, and the people began to commit whoredom with the daughters of Moab:* And the name of the...

, a prominent Midianite, and was romantically involved with the Israelite Zimri

Zimri (prince)

Zimri was the Prince of the Tribe of Simeon during the time of the Israelites in the desert. At Shittim he took part in the Heresy of Peor, taking as a paramour a Midianite woman, Cozbi...

, son of Salu. The Lord objected to the mixing of the Israelite with the Midianites, and the resultant worshiping of Baal

Baal

Baʿal is a Northwest Semitic title and honorific meaning "master" or "lord" that is used for various gods who were patrons of cities in the Levant and Asia Minor, cognate to Akkadian Bēlu...

, and instructed Moses

Moses

Moses was, according to the Hebrew Bible and Qur'an, a religious leader, lawgiver and prophet, to whom the authorship of the Torah is traditionally attributed...

 to slay all the Israelites who had worshiped Baal.

"And behold, one of the people of Israel came and brought a Mid'ianite woman to his family, in the sight of Moses and in the sight of the whole congregation of the people of Israel, while they were weeping at the door of the tent of meeting." (Revised Standard Version)

Phinehas son of Eleazar (son of Aaron

Aaron

In the Hebrew Bible and the Qur'an, Aaron : Ααρών ), who is often called "'Aaron the Priest"' and once Aaron the Levite , was the older brother of Moses, and a prophet of God. He represented the priestly functions of his tribe, becoming the first High Priest of the Israelites...

) picked up a spear and killed Zimri and Cozbi with one thrust.