Similar Material it-2 “Slinger” Slinger Aid to Bible Understanding The Sling—Ancient but Effective Weapon Awake!—1977 Sling Glossary Spearmen Aid to Bible Understanding Spearmen Insight on the Scriptures, Volume 2 Did You Know? The Watchtower Announcing Jehovah’s Kingdom—2014 “The Battle Belongs to Jehovah” The Watchtower Announcing Jehovah’s Kingdom (Public)—2016 David and Goliath Lessons You Can Learn From the Bible Sling Insight on the Scriptures, Volume 2 Sling Aid to Bible Understanding