Similar Material w87 3/15 pp. 21-23 A Joyful People—Why? Serve Jehovah With a Joyful Heart The Watchtower Announcing Jehovah’s Kingdom—1982 Presenting the Good News—With Joy Our Kingdom Ministry—1988 Joy—A Quality We Acquire From God The Watchtower Announcing Jehovah’s Kingdom (Study)—2018 Joy—A Quality We Acquire From God The Watchtower Announcing Jehovah’s Kingdom (Simplified)—2018 Serve Jehovah With Joy of Heart The Watchtower Announcing Jehovah’s Kingdom—1995 Finding Joy in a Trouble-Filled World The Watchtower Announcing Jehovah’s Kingdom—1985 Finding Joy in God’s Service Today The Watchtower Announcing Jehovah’s Kingdom—1966 The Joy of Jehovah Is Our Stronghold The Watchtower Announcing Jehovah’s Kingdom—1995 Be Joyful With the Happy God The Watchtower Announcing Jehovah’s Kingdom—2001 Increase Your Joy in Preaching Our Kingdom Ministry—2002