Why did Beulah take a pistol to church?

I just finished reading a book by Clayton Sullivan with the very intriguing title Why Beulah Shot her Pistol Inside the Baptist Church. Beulah's language is conversational and raunchy in parts but it was an interesting story dealing with rural Mississippi life, marriage to an older man, domestic violence, and hypocrisy in the church. It was an easy read; I finished it in a few hours. I wanted to know why Beulah needed to fire a pistol in church so I could not put the book down.

I did not like the constant repetition. Beulah kept saying the same thing 3 or 4 different ways and this way annoying.