What does the Bible say about overcoming Antichrist?

In 1 John 4:4, we read that believers are told, "You are of God, little children, and have overcome them." This overcoming is not achieved through our own strength or merits, but because "greater is He that is in you than he that is in the world." This verse emphasizes the power of Christ in the hearts of believers; it is Christ who secures victory over false teachings and the spirit of Antichrist. The knowledge that our assurance and salvation depend on Christ’s finished work allows us to stand firm against the deceptions of false prophets and spirits that oppose the true gospel.