'Spirits' in the Bible

They were all astonished and in awe, and began saying to one another, “What is this message? For with authority and power He commands the unclean spirits and they come out!”

who had come to listen to Him and to be healed of their diseases. Even those who were troubled by unclean spirits (demons) were being healed.

At that very hour Jesus healed many people of sicknesses and infirmities and evil spirits; and He gave [the gracious gift of] sight to many who were blind.

and also some women who had been healed of evil spirits and diseases: Mary, called Magdalene [from the city of Magdala in Galilee], from whom seven demons had come out,

Nevertheless do not rejoice at this, that the spirits are subject to you, but rejoice that your names are recorded in heaven.”

Then it goes and brings seven other spirits more evil than itself, and they go in [the person] and live there; and the last state of that person becomes worse than the first.”