Do you want new ways to welcome members into your church? Check out these top church membership welcome letter templates and best practices.Below is a sample letter for your hospitality team as they welcome new members to the church. We've built a complete kit of templates to help you get started on building a comprehensive welcome packet for newcomers. A "thank you for joining" membership letter should include a personalized greeting to the new member. Use the member's first name in your salutation. Here are 10 things your welcome letter or email to new members must include plus a template that can be customized for your organization. I am happy to be able to inform you that on Tuesday, Nov. 24 the Church Board officially accepted you into Membership here at First Christian Church. 1. Enter the date at the top of the letter.