Demon possession?

When the even was come, they brought unto him many that were possessed with devils: and he cast out the spirits with his word, and healed all that were sick: that it might be fulfilled which was spoken by Esaias the prophet, saying, Himself took our infirmities, and bare our sicknesses.
Matthew 8:16‭-‬17 KJV
https://bible.com/bible/1/mat.8.16-17.KJV