2.13 - Houses Of The Holy

The Winchesters investigate a spate of murders committed by people who were apparently visited by an angel and told to carry out "God's will" and kill those who have sinned. For Sam it's easy to believe it to be the case. Not so for easy Dean, who believes they're dealing the confused and angry spirit of Father Gregory, a man murdered on the steps of his church in an attempted robbery. While checking up on a lead Sam is visited by the angel and told to kill someone.

Source: IMdb