I look at the Story of Lucifer...The bible describes him as once being almost God...in the same statement saying he was not equal to God. Yet, the almost part is very powerful stuff. He was God's right hand angel. So for him wouldn't victory also be guaranteed? But Scripture doesn't get into too much detail over the details of Satan and Himself other than to say he one day was found to have rebellion in him. Rebellion is the turning of our hearts from God, And we know from scripture from the heart go our feet. The only thing God could do was to kick him out. The same is true in us, our heart dictates policy to the rest of what we do. It is the heart of us found in Him that is our condition to the victory Jesus procured on a cross, the only condition, for it is nothing we can do, or, did do, that merits it...If we willfully continue to turn to sin, God has no other recourse but to place you back in the pool of sins outcome... It's like getting grades in school, I could never get even one A but Christ get's nothing but A's...In the same way, once I live in the regular A's experience it is a little harder to get F's then because I must take the success I know and leap to get the F's...pull myself away from the A's...and strive then for the F's with earnestness. You see when our heart is in Christ, we sometimes hear Him say sitting next to us in school, 1 plus one is two, and as sheep and not perfect we say ok and turn and write down 1 plus one is 12. He looks at us and says, "no, do you trust me?" and you say, "of coarse, Lord, I do." He then pulls out His eraser and erases your mistake and actually writes the correct answer for you as you see your hands move on the paper. Your trust has set the right answer before you. Found in Christ. Just an example, but you can see my point.
You see we are seen where our heart is placed by the fruit of our lives, in the whereabouts in the placement of our hearts. Faith without works is dead, meaning we can't help but do what God gives us to do because our roots grow what he's dishing..[ this is why He can judge us based on what we did and did not do, for it is He that accomplishes it].and He dishes the fruit. But the heart is key. For if we are found with rebellion, that lingers and sets forth a demand to God of it's purpose to leave Him, He has no choice, but to let you go. Yes, no one can touch you when you stand against the devil, but ONLY WHEN YOU DECIDE TO ABIDE IN HIM>, DAILY<> AND CONSISTENTLY!< grace irons out the track record, and God takes on your battles,but you must place yourself in Him or that guarantee is not valid.