Book excerpt: Angels are God’s messengers and His spirit army, and they are very numerous. Make no mistake, angels do exist! They exist to serve “those who will inherit salvation”. But because they are invisible, we tend to forget their role in carrying out God’s purpose and plan. Many angels have been given the duty of serving our needs, and their responsibilities and assignments may change with circumstances. Inside study aid: -- The Origin of the Spirit Realm -- The Vast Multitudes of Heaven’s Armies -- Should We Worship or Pray to Angels? -- Appearing in Human Form -- Did Angels Interbreed With Women to Produce Giants? -- Popular, But Wrong, Ideas About Angels -- Where Did the Idea of Angels as Babies Originate? -- Leading Angels: Michael and Gabriel -- What Is the Origin of Satan and Demons? -- Different Kinds of Angels -- Serving God and Mankind -- Personal Stories of Angelic Encounters