Phyllis Tickle, the late author and founding editor of the religion department at Publishers Weekly, once wrote that every 500 years the church experiences a “massive upheaval,” where old ideas are rejected and new ones emerge. Tickle used the analogy of a “500-year rummage sale” to illustrate how the church enters into a period of cleaning house, deciding what to keep and what to toss in order to make way for the new thing God is doing.