Psalms 106:29-30

Psalms 106:29-30. Thus they provoked him to anger with their inventions: and the plague brake in upon them. Then stood up Phinehas, and executed judgment: and so the plague was stayed.

In his hot zeal he ran the spear through two who were rebelling against God. He did it with all his might, and sometimes it is a kindness to a people to deal severely with them. Sin is not to be treated with white kid gloves. It has to be dealt with sometimes with a heavy hand. Phineas did this.