2 Peter 1:10
Wherefore, the rather, brethren, earnestly endeavor to make your calling and election sure; for doing these things, you shall never fall;
2 Peter 2:1-2
But there were also false prophets among the people, even as there will be false teachers among you; who will privately introduce destructive sects, denying even the Lord who bought them, bringing on themselves swift destruction.
2 Peter 2:18
for, speaking great swelling words of falsehood, they allure by the lusts of the flesh, even by lasciviousness, those who have actually fled away from them who are living in error.
2 Peter 3:11
Seeing, then, all these things shall be dissolved; -what sort of persons ought you to be, in holy behavior and godliness,
2 Peter 3:14
Wherefore, beloved, expecting these things, diligently endeavor to be found of him spotless, and irreproachable, in peace.
2 John 1:8
Look to yourselves, that we may not lose the things which we have wrought, but may receive a full reward.
Jude 1:20-21
But you, beloved, building up yourselves on your most holy faith, praying with a holy spirit;