Your Guide to Discovering and Destroying Sacred Cows. What is a Sacred Cow? “A sacred cow is any program, custom, tradition, or religious function that has evolved from its original purpose of serving, to demanding to be served….creating an animal so deformed that it can’t be dealt with, but must be destroyed. So writes author Mark Briggs as he light-heartedly addresses serious “cow” issues in our Behind the Mask of Religious Traditions exposes the ugliness of dead rituals and reveals the beauty of true worship. Mark Briggs is a third generation pastor and founder and senior pastor of Riverpark Church in Shreveport, Louisiana. He lives in Shreveport with his wife, three children, and a brown dog.