What does the Bible say about Christ defeating Satan?

The victory of Christ over Satan is a central theme in the Bible, notably illustrated in Revelation 12, where it is depicted as a cosmic battle resulting in the expulsion of the devil. Christ, referred to as Michael, the chief messenger, leads the charge against Satan, demonstrating His ultimate authority. This victory is not only a future hope but a present reality for believers, as we find our safety in Christ amidst the suffering and persecution in this world. His death on the cross signifies the judgment of this world and the casting out of Satan, fulfilling the everlasting covenant of grace and securing the salvation of His people.