Here is a passage from Luke 11:20-22 NLT.
“But if I am casting out demons by the power of God, then the Kingdom of God has arrived among you. For when Satan, who is completely armed, guards his palace, it is safe-until someone who is stronger attacks and overpowers him, strips him of his weapons, and carries off his belongings.”
“The stronger (one)”
Do not be misled: Satan is strong in power and cunning. He has laid low some of God’s choicest servants because they underestimated him and overestimated themselves. Even Samson with all his strength was no match for Satan. Nor was Solomon with all his wisdom.
So how can you keep the devil and his buddies out of your “house”? A man stronger than the one who controls you must deliver you. Only one qualifies as stronger than Satan: Jesus Christ.
I want to make it clear that genuine Christians need not fear being possessed or controlled by demons; Jesus is not into a time-sharing program with Satan. The Bible tells us, “He who has been born of God keeps himself, and the wicked one does not touch him.” (1 John 5:18)
Oh, Satan may knock on the doors and rattle the windows. He may threaten to “huff and puff and blow the house down.” But he cannot enter because someone stronger has taken up residence. “Greater is He that is in you, than he that is in the world.” (1 John 4:4 KJV)