Write a long, nasty, mean-spirited letter to explain everything that they dislike about the church and articulate their own self-pity at length. Entering into, engaging with, and departing from Christ's local body is a significant part of following Jesus.Create and write an official letter to announce your departure from a church. Download finished copies as PDFs. There are times when Christians transfer church membership. But there is a proper time and way to leave a church. Overall information about the Church Resignation Letter, how to prepare one, why and when to use it, and the mistakes to avoid. Dear Grace Church, I am writing this letter to submit my resignation and begin my plan of succession.