In the Book of Revelation Chapter 12:7-9 it talks about Satan being cast out of heaven. My question is this a future event that hasn't happened or has it already happened and it is just retelling the event?
7 And there was war in heaven: Michael and his angels fought against the dragon; and the dragon fought and his angels,
8 And prevailed not; neither was their place found any more in heaven.
9 And the great dragon was cast out, that old serpent, called the Devil, and Satan, which deceiveth the whole world: he was cast out into the earth, and his angels were cast out with him. (KJV)
I believe these verses illustrate what took place when Christ died and was resurrected from the grave. We need to remember that Christ died to forgive the sins of those who lived before him as well as for those who live after the cross. Before Christ died the devil could accuse everyone of living in sin because Christ had not died to forgive those sins. When Christ died and made the sacrifice for those sins, the devil could no longer accuse God's people of sin. They were forgiven. This war was a continuing war which had taken place since the fall of man in the Garden of Eden. When Christ died, he won that war and Satan was cast out of heaven in a figurative sense because he could no longer accuse God's people of being in sin.
The actual key to these verses is verse 10 which says,
10 And I heard a loud voice saying in heaven, Now is come salvation, and strength, and the kingdom of our God, and the power of his Christ: for the accuser of our brethren is cast down, which accused them before our God day and night. (KJV)
Notice the things which took place when the devil was cast out.
1. Now is come salvation: The sins of God's people were forgiven. This took when Christ died for our sins.
2, The kingdom of God came. This is the church and it was given to us after Christ died on the day of Pentecost.
3. The power of Christ: Rom 1:4 says, "And declared to be the Son of God with power, according to the spirit of holiness, by the resurrection from the dead:"
4. All of these things happened because the accuser (devil) was cast down.
Take this one step further.
Eph 2:5-6 says, "Even when we were dead in sins, hath quickened us together with Christ, (by grace ye are saved;)
6 And hath raised us up together, and made us sit together in heavenly places in Christ Jesus:"
We have been quickened (resurrected) with Christ and made to sit is heavenly places. When we obey Christ through baptism our sins are forgiven and we are spiritually resurrected to sit with Christ or reign with him in the church. The church is the "heavenly place" on this earth.
Now notice that the devil was cast out of the "heavenly places" down to the earth. So, the heavenly places represent the church where Christ dwells and the earth represents those forces of evil working in the world today all around the church. If we are in the church we are not supposed to be of this world. In other words, we do not partake of the evil of this world.
The Devil cannot reside in the church. He may tempt us, but he cannot harm our spiritual lives if we remain faithful to God. Our sins are forgiven and the Devil has no control over us. He cannot accuse us of living in sin before God.