The Gun and the Pulpit

An on the run gunfighter, wanted for a crime he didn't commit, stumbles upon the body of a preacher who's been killed. In an attempt to hide from his pursuers, he takes on the dead preacher's identity and proceeds to make quite an impression on an entire town that is being bullied by an arrogant, controlling man and his cronies. Read more about this movie on this IMDB page.