I told you earlier that when we get to the book of John, we're going to find Satan is undergirding much of what John has written. He may not be mentioned directly in terms of being Satan, but the reference is there. He is the wicked one.
Did you notice that was written in the past tense? You have overcome the wicked one! What we have is an encouraging mind conditioner intended by God to give us the will to resist, and I will tell you why. Let me put it this way: to give us the will to continue steadfast in the faith.