Definition & Meaning of "Bible puncher"in English

What is the origin of the term "Bible puncher" and how is it used?

"Bible puncher" is an English slang term that appeared in the mid-20th century, formed from "Bible" and "puncher," evoking the image of someone forcefully emphasizing scripture, sometimes literally pounding or striking the Bible for effect. It describes a fervent or overzealous Christian who aggressively promotes their faith or moral views. The term is used in informal speech, media, and social commentary, particularly in English-speaking countries, and is mildly to moderately derogatory, criticizing zeal or pushiness rather than being vulgar.