Similar Material w80 2/15 pp. 8-13 Joyful Festivals Festival Milestones of Israel’s History The Watchtower Announcing Jehovah’s Kingdom—1998 The Three Annual National Conventions The Watchtower Announcing Jehovah’s Kingdom—1967 “You Must Become Nothing but Joyful” The Watchtower Announcing Jehovah’s Kingdom—2007 Festival of Booths Aid to Bible Understanding Festival of Harvest; Festival of Weeks Glossary Festival of Booths Insight on the Scriptures, Volume 1 Pentecost Insight on the Scriptures, Volume 2 Pentecost Aid to Bible Understanding Festival to Be Celebrated by Billions The Watchtower Announcing Jehovah’s Kingdom—1980 Festival Illumination The Watchtower Announcing Jehovah’s Kingdom—1980