Looking to invite someone to church? Discover how to write a compelling church invitation letter with these easy steps!These invitation letter templates are just a few of over 1,100 modifiable full-text letters within over 60 categories! 6 Steps to Making a Church Invitation Letter Step 1: Write about the Background and Purpose of the Event. Step 2: Keep the Tone Polite and Serious. A good church invitation letter should be warm, welcoming, and to the point. Sample Invitation letter. As various other church events during the year. Nativity Series Part 5 of 6 The nativity blog series is an invitation to "enter into" the manger scene and ponder where you are in relation to Jesus.