8 and followed them into the tent. With one thrust he drove the spear through the two of them, the man of Israel and the woman, right through their private parts. That stopped the plague from continuing among the People of Israel.

Matthew Henry's Commentary on Numbers 25:8

Commentary on Numbers 25:6-15

(Read Numbers 25:6-15)

Phinehas, in the courage of zeal and faith, executed vengeance on Zimri and Cozbi. This act can never be an example for private revenge, or religious persecution, or for irregular public vengeance.