[QUOTE=kanicbird]
A view is that he was suppose to help guide humanity - in God’s plan, in Genesis God left us and Satan was there. God entrusted and empowered Satan to care for us. Satan went his own route, instead of blessings and life, Satan introduced sin into the world and death. Since man is incapable of not sinning by himself, every death is justified - and Satan’s plan seems to be working. Here Satan (and his demons) just lead man into sin.
Then we see God pour out His blessings on Job, Satan protests as Job is sinless at first, which would ruin Satan’s plan as death is only justified if one sins, God removes the blessing and Satan finally get Job to commit a sin of idol words - enough to justify death - Satan’s plan for man still holds and though God does not like it, there is nothing technically wrong with what Satan has done.
Jesus came, fully man, and will be found sinless, Satan’s plan no longer holds, that death is unjustified and Satan now is condemned. Perhaps expelled from heaven, or that he fell like lighting for one last attempt to get Jesus to sin here on earth.
This also split the kingdoms, before this Satan was acting as a authorized agent of God, though stretching the rules, technically Satan didn’t violate any. So ultimatly God is shown in OT times for sending things like evil spirits, though it is likely that Satan was the one who sent that evil spirit as a decision of his own, within the limits of power set by God.
After Jesus’ death Satan’s plan for humanity has been proven to be flawed and God will eventually crush him and his kingdom. Until then Satan continues to command his demonic forces against humanity and angels as well as accuse us before the throne of God day and night.
Going forward Satan will cause great deception, a false god that will have apparently great power and deceive many. One last attempt to pervert humanity. There will be a war in heaven where the angels of God will defeat Satan’s forces. Satan will be bound for about 1000 years, after which time he will be released then condemned to the lake of fire for ‘ever and ever’ or ‘ages of ages’, either way it’s going to be a very long time
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I don’t know where you got this stuff, but the very little that could be found in the bible is so out of context as to be irrelevent.