Why is it important that Christ came to destroy the works of the devil?

The importance of Christ destroying the works of the devil lies in the liberation it brings to His people. In 1 John 3:8, we see that Jesus was manifested to undo the effects of Satan's reign over humanity. By casting out demons and healing the blind and mute man in Matthew 12, Jesus demonstrates His authority over spiritual darkness. This act signifies that believers are no longer under the control of Satan and have been given the capacity to see their sin and cry out for mercy. The gospel reassures us that with Christ's victory, believers possess a new heart that cannot be deceived by Satan, empowering us to live in the truth and freedom of Christ.