Letter withdrawing my forty year membership from my church. I joined TNPC last month; however, I still need to write the letter officially terminating my membership at my parents' Methodist Church.Simply enter your information below and the form will automatically be filled in. When complete, the form will be saved as a PDF to print and send. A church resignation letter is a formal written notice announcing the intention to leave a position with a religious organization. You can always write a formal letter to your local church board stating your request and the reasons why.