How do we know the doctrine of Christ's victory over Satan is true?

The doctrine of Christ's victory over Satan is affirmed through multiple scriptural references, notably in Revelation 20:1-3 and throughout the Gospels. Christ's ministry is marked by His triumph over the devil, including the casting out of demons, which signifies His authority. His death on the cross, often viewed through the lens of 1 John 3:8, reveals His mission to destroy the works of the devil, ultimately culminating in His resurrection. The ongoing proclamation of the Gospel further confirms this victory, as it spreads and transforms lives, assuring believers that they will not be deceived. Thus, through both His actions and the fulfillment of prophecy, we see the undeniable truth of Christ's dominion over Satan.