Being tested by satan is common to man. And what does it reveal to satan? Gods Grace and Mercy. That God was fair and Just in His judgement of satan. It's not about how good we are, it's about how good God is. He provides everything we need to go through the testing. He isn't going to allow a young believer to be tested as a mature believer. If one has the full armor of God on He will allow harder tests because that one can endure more.........and it Glorifies God, not the believer. It gives the believer more rewards to place at His feet.
Everyday life causes enough testing and trials without Satan throwing petrol on the fire in my humble opinion.
Eve was the first to sin.
Rom 5:12 Therefore, just as through one man sin entered the world, and death through sin, and thus death spread to all men, because all sinned
And your other books are not very similar, if you think it proclaims war in heaven brought sin in this world, mankind did.
"The Angelic Conflict began before human history and is the reason for the creation of mankind. It is a conflict that is in full force today. This conflict explains the small personal problems in life as well as the major events that take place throughout all of human history. Although most individuals are ignorant of this conflict (including many Christians), the Angelic Conflict affects all aspects of our lives."
On pg 72 is one of the places that seems to indicate that the angels fall introduced sin into the world. Which if you disagree with then we are in agreeance that its wrong. Yet a red flag was that the fall even affected the trinity? I don't know if I want to know where they go with that, I am trying to pretend I didn't read things like that.
"One final question that should be asked is why a holy and righteous God, who is all knowing and all powerful, would allow this angelic fall? This fall introduced sin into the universe, affecting angels as well as human beings, not to mention its affect upon the Trinity. To answer this, we simply need to realize that God is perfect."
Anyway its big book, and Im half way through another book, with another book given to me by a fellow church member that I have to read and get back to him about. But if I can spare time ill have more of look.