“…nor give place to the devil…” Ephesians 4:27.
For some Satan is a mystical character from fables, fairy tales or legends. He maybe, but he is surely more than that. He is a real fallen spirit that is fighting anything that is Godlike, opposes those that follow Christ and has evil purposes for humanity intending to drag all of us with him to hell. That might sound scary, but it should not. God gave us power of the rebellious spirit and if we command him to flee, he must flee. He has no choice. There is power in the name of Jesus. Use it, to defeat the enemy of our souls.