What does the Bible say about overcoming the wicked one?

In 1 John 2:14, it's emphasized that believers, referred to as young men, have overcome the wicked one because they are strong, and the Word of God abides in them. This overcoming is only possible through the redemptive work of Christ, who has already triumphed over sin and evil. The strength of believers does not come from their own abilities but through their union with Christ, who has conquered the wicked one on their behalf. Thus, any victory over sin is a result of His victory and not a personal achievement.