How do we know that Christ has authority over demons?

The authority of Christ over demons is evidenced throughout the Gospels. In accounts such as the healing of the Gadarene, demons are compelled to obey Jesus and acknowledge His identity as the Son of God (Luke 8:28). When Christ commands the demons to leave, they must comply, illustrating His unmatched authority in the spiritual realm. Additionally, passages like Matthew 8:29 record demons expressing fear and awareness of their impending judgment at His hands. This recognition by demons affirms that Jesus does not merely possess power over them but holds ultimate authority, providing reassurance to believers of His sovereign control over all forces, both seen and unseen.