God created a multitude of spiritual beings called “angels”. Righteous angels continue to serve God and work both in the heavenly sphere and on earth. By his disobedience, Satan, a fallen angel, became the adversary of God and God’s people, carrying with him a procession of demons. Jesus Christ has overcome Satan so that the final judgment and doom of Satan and his demons are certain. (Daniel 7:10; Hebrews 12:22; Hebrews 1:14; Ephesians 1:21; Ephesians 3:10; 1Peter 5:8.9; Revelation 12:1-10; Ephesians 6:12; 1John 3:8; John 12:31; Romans 16:20; Revelation 2:10)