"God's Plan For Unity" by Bill E. Smith & Jeff A. Jenkins

Unity is essential to church growth, and harmony. Such subjects on Unity as ONE - Body, Church, God, Baptism, Lord, Spirit, Hope, Faith, and more (This is by a new writer for the series: Jeff A. Jenkins, a faithful gospel preacher)

Each workbook has 13 lessons (Fill-In-Blanks) Suitable for Pre-teens through Adults.