I think that in order to find the answers needed here, we must examine the theology relating thereto.
I think that one of the fist and fundamental truths which we clearly need is to understand that all of us existed and lived in heaven as spirit children of God the Father. It appears that in that spirit realm of our existence we were endowed with the God given power of agency. The Father knew that agency was an essential key to our eternal progress. With that agency, of course, there was accountability.
The following scriptures indicate clearly that we were fist created spiritually in heaven and had accountability to God by our agency and the free exercise thereof.
Numbers 16: 22 And they fell upon their faces, and said, O God, the God of the spirits of all flesh, shall one man sin, and wilt thou be wroth with all the congregation?
Numbers 27: 16 Let the LORD, the God of the spirits of all flesh, set a man over the congregation,
Malachi 2: 10 Have we not all one father? hath not one God created us? why do we deal treacherously every man against his brother, by profaning the covenant of our fathers?
Ephesians 4: 6 One God and Father of all, who is above all, and through all, and in you all.
Hebrew 12: 9 Furthermore we have had fathers of our flesh which corrected us, and we gave them reverence: shall we not much rather be in subjection unto the Father of spirits, and live?
The theology as I understand it is that there was presented to all the spirit children of God his glorious plan of Salvation which could bring us back into heaven by the vicarious sacrifice of a Redeemer. This divine plan of the Father gave each of us the full power of agency. Only with this power of agency we have the opportunity for ultimate success or failure in achieving our eternal destiny.
Christ was in full harmony with the Fatherâ€™s plan and volunteered and was willing to provide the necessary atoning sacrifice required to fulfill the plan and give all the honor and glory to the Father.
Another spirit son of God by the name of Lucifer rebelled against this plan and presented his own opposing plan wherein he would save all. His plan required that the Father give him all the glory and power of God. This opposing plan would be accomplished by force and deny all the spirit sons and daughters of God the power of agency or choice, thus further eliminating accountability.
The plan of the Father was accepted and sustained by 2 thirds of the host in heaven, but 1 third chose to follow Lucifer. The ensuing war in heaven resulted in Lucifer and those who chose to follow him, being cast out of heaven and the were cast down into this earth as shown in Revelation Chapter 12.
At this point we should maybe ask â€œ why did God the Father cast Lucifer and all the rebellious angels down to this earth instead of casting them down to some other planet billions of light years away so we would not be temptedâ€�?
Why would an all wise and all knowing God do this?
Why would an all wise and all knowing God also allow His only begotten beloved Son to be sorely tempted by Lucifer?
What was His divine purpose in allowing this this condition of opposition to now exist?
I think that the ultimate answer lies in understanding that there must needs be a perfect balance in the â€œopposition in all thingsâ€� .
We have the power of agency to choose either good or evil.
Have you ever wondered how important it is that we do indeed exercise our power of agency in our innermost thoughts? If we think evil thoughts to we attract those evil spirits that followed Lucifer? If we garnish our thoughts unceasingly with virtuous thoughts do we attract those holy angels?
As the poet declared â€œour birth is but a sleep and forgettingâ€�. When we are born we have all memory erased and have no ability, but to suck and feed ourselves. We have to learn all things afresh. we stumble, we fall and eventually learn to walk and run, think, and learn. Is this all part of his divine plan, wherein we also must learn obedience to that plan?
As we are taught in Hebrews Chapter 5 we are tested and need to follow our great exemplarâ€™s example of obedience.
Hebrews 5: 8 Though he were a Son, yet learned he obedience by the things which he suffered; 9 And being made perfect, he became the author of eternal salvation unto all them that obey him;
Getting back to this â€œwar in Heavenâ€� we are taught several things:
Revelation 12: 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. 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.
Here we learn several things about the above verses:
There was war in heaven
Michael was apparently the chief angel who sustained the Fathers plan.
Lucifer was the head of the opposing rebellious force.
Lucifer and his forces prevailed not.
Lucifer and his hosts were cast out of heaven.
Lucifer and his hosts could never return to heaven.
Lucifer or Satan was allowed to deceive the â€œwhole worldâ€�.
Lucifer or Satan who was once in heaven was cast out into the earth.
John the revelator heard a loud voice declaring that â€œnow is come salvationâ€�.
John also saw that the â€œkingdom of our God would be establishedâ€�.
John further saw and identified Lucifer as â€œthe accuser of our brethrenâ€�.
John further was shown that even in heaven Lucifer â€œaccused them before our God day and nightâ€�.
We observe that this war which was first fought in heaven is continued and now fought on this earth.
There is much more that needs discovery and explanation on this subject, but this should suffice for now.