How do you beat the Devil?

How do you beat the Devil when he is everywhere at the store, in your bed, and even in your shower. he sneaks, he creeps, he peeps, he leaps, he's always all about. Then how do you beat the Devil when he is everywhere you fight, you bite, you kick, you scream, you even cite the Bible, Is this how you beat the Devil. Then why does he still follow and when you weep and wallow, he seeps in your sorrow but when you laugh he steps back and when all you love comes from up above You see how to beat the Devil you fight him at your spirits level.