So guess what? What will Satan do now? The only thing he can do - go back to trying to condemn you - he doesn't have anything else. The gospel (and we if we believe the gospel) hit(s) and destroy(s) the very nerve center of the enemy's nerve center. That is why he fights so hard against the gospel of grace - it is truly "the power of God unto salvation' (delivering and setting us free).
For the law having a shadow of good things to come, and not the very image of the things, can never with those sacrifices which they offered year by year continually make the comers thereunto perfect.For then would they not have ceased to be offered? because that the worshippers once purged should have had no more conscience of sins.(Hebrews 10:1,2)
In spiritual warfare, fallen angels have more than accusation as weapons against believers.
Our souls are scarred by many worldly and carnal temptations which demonic influence may attempt to thwart our operations and growth in Him.
True, if we remain in faith in Christ, we can persevere and there is no temptation greater than that which may be resisted, but we are frequently tested before we continue to advance.