Write a long, nasty, mean-spirited letter to explain everything that they dislike about the church and articulate their own self-pity at length. Now that you are leaving, don't forget to thank God for directing you there in the first place and for the valuable time spent with His people.Keep your former church in your prayers and speak well of it. Church members should exercise graciousness and courtesy in leaving a church. The relationship of homosexuality to Christianity is one of the main topics of discussion in our culture today.