Numbers 25:6-9

6Just then one of the Israelite men brought a Midianite woman into his tent, right before the eyes of Moses and all the people, as everyone was weeping at the entrance of the Tabernacle.

7When Phinehas son of Eleazar and grandson of Aaron the priest saw this, he jumped up and left the assembly. He took a spear

8and rushed after the man into his tent. Phinehas thrust the spear all the way through the man’s body and into the woman’s stomach. So the plague against the Israelites was stopped,

9but not before 24,000 people had died.