Don't Get Rattled
We have authority over the devil, but that doesn't mean he will never come against us. Resisting the devil doesn't rid us of the problem. But standing in the faith of God's promises while we are waiting for God to do something keeps us from acting like the devil ourselves.
Don't get rattled about the devil. If he causes problems for you today, just say, "Forget it, devil! I am not staying hurt, bitter, wounded, or angry. My trust is in God. I am a Christian – Watch me be happy."