Jesus had the ability to both teach and heal unclean spirits. This lead to Jesus growing in popularity rapidly which incited a shadow of jealousy among people. Jesus had many interactions with evil spirits and it’s most commonly believed to be because the devil had conflicting reactions in front of the Son of God. The evil spirits got angry by the presence of Jesus. In the early ages, they truly thought that it was the evil spirits acting behind the scenes every time.
In modern society, people react due to psychological disorders and due to how we think based on what we see and hear in the media. Jesus has the power to heal us from it!