1 John 2:14
I have written to you, fathers, because you know Him who has been from the beginning. I have written to you, young men, because you are strong, and the word of God abides in you, and you have overcome the evil one.
Revelation 12:10-11
And I heard a loud voice in heaven, saying, 'Now the salvation, and the power, and the kingdom of our God and the authority of His Christ have come, for the accuser of our brethren has been thrown down, who accuses them before our God day and night. 'And they overcame him because of the blood of the Lamb and because of the word of their testimony, and they did not love their life even to death.
1 John 5:4
For whatever is born of God overcomes the world; and this is the victory that has overcome the world -- our faith.