The existence of evil and suffering in our world has been a paradox to theologians and believers in relation to God's goodness. To reconcile these apparent contradictions requires an understanding of what the war in heaven was about and the reason for the fall.
The Garden of Eden was not the intended residence for God's children for all of eternity. Orthodox theologians say that it was. How is it they concluded that our eternal paradise as it were would include a being such as Satan as a resident? This is just one of the errors of philosophical reasoning of traditional theologians and Bible scholars.
From the book of Revelation, we learn that certain beings existed before the creation of the Earth. It speaks of a war in heaven where a fallen angel and a third of the hosts (called angels or stars) were cast out. How is it that a war developed even the pre-mortal heaven where God resides?
If a war was allowed to develop in that pre-mortal realm, then freedom must have existed among intelligent beings at that time. The Bible tells us that Jesus was foreordained from before the foundation of the world to be the Savior of the world. Did this war have something to do with his calling as the Son of God and the fact that good and evil were at odds with each other even then?
This could not happen in a neutral state of existence, without freedom or without a prior existence of the spirit. Christian Bible scholars and philosophers say that man is eternally limited to being inferior creatures. They place limits on the saving grace of Christ.
The tree was in the middle of the garden, not in a remote orchard. It was one tree having the knowledge of good and evil, not two trees, one of good and one of evil. It stood as the bitter fruit of death as opposed to the tree of life.
God allowed Satan to hasten the process needed in order to begin the real salvation of Adam's and Eve's souls. Their bodies wouldn't be perfected until they were resurrected. Their character would also be perfected through knowledge, choice, repentance, mercy and grace.
Redemption would be wrought by faith in a redeemer, even the Son of God. Adam and Eve were the world's first Christians. God gave them laws applicable to mortality and they taught their children.
We are given power over Satan and his hosts through faith in Christ. He will be overcome and cast to his final prison in the end.
It will be done in the same manner as the pre-earth war. "And they overcame him by the blood of the Lamb, and by the word of their testimony". Revelation 12:11