The term "unclean spirit" in the Bible refers to a type of evil spirit or demon associated with moral impurity and spiritual contamination. The concept appears frequently in the New Testament, particularly in the Gospels, where it is often linked to physical and spiritual affliction. For instance, in Mark 1:23-26, Jesus encounters a man possessed by an unclean spirit in the synagogue, and he commands the spirit to come out of him, highlighting the authority Jesus has over such forces. The unclean spirit is characterized by its ability to oppress and possess individuals, leading to manifestations of illness or madness.In the Hebrew Bible, the term associated with unclean spirits can be found in texts discussing impurity and the need for holiness, like Leviticus 11, where dietary laws are presented, separating clean from unclean animals. The presence of unclean spirits often signifies a disruption of the intended order of creation and a challenge to God's holiness. The New Testament, particularly in the accounts of Jesus' ministry, emphasizes the power of Christ to cleanse and restore individuals from the grip of these malevolent entities, underscoring themes of redemption and spiritual authority (Luke 8:2).