Do you want new ways to welcome members into your church? Check out these top church membership welcome letter templates and best practices.You've been a friend, an encouragement, a mentor, and a blessing in times of need. How do I write a letter asking for church support in completing my school fees of 129,000? You can ask them politely and explain your situation. A letter of invitation includes an explicit invitation to join the church as an official member. In this Dexter sermon King reads a fictional letter from the apostle Paul to American Christians of the mid-twentieth century. Simply fill in your personal information and the letter is readytogo. Plus, each letter can be easily modified to fit your specific needs. A letter to the church.