Write a long, nasty, mean-spirited letter to explain everything that they dislike about the church and articulate their own self-pity at length. Be honest, be upfront, and be loving and gentle.Customizing your Leaving a Church Letter is easy with Jotform Sign. Maybe you are thinking about leaving the one you are currently at? Maybe you just left a church and are "shopping" for just the right church? We love each of you so much, and are very sad to say goodbye. We have grown so much during our time here. 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. 1. Consider the ways you'd like to leave.