Write a long, nasty, mean-spirited letter to explain everything that they dislike about the church and articulate their own self-pity at length. Let's open the Bible to Revelation 13, the letter from Jesus to the church in Philadelphia.One way to minister grace to your new brothers and sisters is to speak graciously about your former church. Jesus's letter to Philadelphia was written to a struggling church. They were struggling with the persecution they faced, yet they remained faithful.