Two demon-possessed men, coming out of the tombs, exceedingly fierce, so that no one could pass that way. And suddenly they cried out, saying, “What have we to do with You, Jesus, You Son of God? Have You come here to torment us before the time?”

Jesus asked him, “What is your name?”
“Legion,” he replied, because many demons had gone into him. 31 And they begged Jesus repeatedly not to order them to go into the Abyss.
32 A large herd of pigs was feeding there on the hillside. The demons begged Jesus to let them go into the pigs, and he gave them permission.
Ephesians 6:12
For our struggle is not against flesh and blood,
John 10:9:11
9 I am the door. If anyone enters by Me, he will be saved, and will go in and out and find pasture. 10 The thief does not come except to steal, and to kill, and to destroy. I have come that they may have life, and that they may have it more abundantly.
11 “I am the good shepherd. The good shepherd gives His life for the sheep
John 8:36
So if the Son sets you free, you will be free indeed