Rediscovering the Missing Jewel is a small-group course study designed around thirteen easy-to-understand sessions. Part 1, The Biblical Foundations of Christian Worship , explores worship in two sessions - one for the Old Testament and one for the New. Part 2, Worship from the Time of the Early Church through the Nineteenth Century , consists of six sessions that trace important developments from Justin Martyr to the congregations of African-American slaves in North America. Along the way, sessions are devoted to Eastern Orthodox, medieval Catholic, Reformation, and Protestant free church worship. Part 3, Worship Renewal in the Twentieth Century , traces strands of Chrsitian experience that directly influenced worship in many congregations today.