I don't agree(though I know I dont have to) that Satan is at war/combat with god in any way..or else he would not have to asked permission to tempt Job...I feel he just serves a purpose..god knew he would be the way he was before he created him...so he had to have a purpose when he done it

or God is not all knowing....

there was no real battle in heaven..God just did not want Lucifer having any glory for himself .
God wants 24/7 glory for himself....that is supposed to be our purpose as well (glorify god 24/7)...other angles started to admire Lucifer.....Satan should be no challenge to God...and Armaggedon..well I'll stop

just in my opinions....not trying to debate...just thinking out loud