We are engaged in a battle. There is real fighting going on in the unseen world. There is a struggle between angels of God and fallen angels, demons. The first great spirit battle was in heaven when one third of the angels were expelled. Listen to these words from God: "And war broke out in heaven: Michael and his angels fought against the dragon; and the dragon and his angels fought, and they did not prevail, nor was a place found for them in heaven any longer. So the great dragon was cast out, that serpent of old, called the Devil and Satan, who deceives the whole world; he was cast to the earth, and his angels were cast out with him" Revelations 12:7-9.
