'Demons' in the Bible

On that day many will say to me, 'Lord, Lord, did we not prophesy in your name, and expel demons in your name, and perform many miracles in your name?'

So the demons implored him, saying, "If you are going to expel us, send us into the herd of pigs."

But the Pharisees were saying, "By the ruler of demons he expels the demons!"

Heal those who are sick, raise the dead, cleanse lepers, expel demons. Freely you have received; freely give.

But the Pharisees, [when they] heard [it], said, "This man does not expel demons except by Beelzebul the ruler of demons!"

And if I expel demons by Beelzebul, by whom do your sons expel [them]? For this [reason] they will be your judges!

But if I expel demons by the Spirit of God, then the kingdom of God has come upon you!