Write a long, nasty, mean-spirited letter to explain everything that they dislike about the church and articulate their own self-pity at length. If people are gracious enough to let me know they are leaving, I write them a letter and thank them for their attendance and past service.Create and write an official letter to announce your departure from a church. Download finished copies as PDFs. I did leave, and am now in a new place much better for me. Thank you, thank you, for all you've done, for your sweet heart for the Lord and for your neighbors. What are some wrong reasons for leaving the local congregation? Some church by-laws give direction on what must happen during a time of transition. So, to my Central church family, I want to say, bless you, bless you, bless you, for you have been nothing but a blessing to us for 10 years. Be honest, be upfront, and be loving and gentle.