2 Peter 1:10; 2 Peter 1:12; 2 Peter 3:14

2 Peter 1:10

10 Therefore, brethren, be all the more diligent to make certain about His calling and choosing you; for as long as you practice these things, you will never stumble;

2 Peter 1:12

12 Therefore, I will always be ready to remind you of these things, even though you already know them, and have been established in the truth which is present with you.

2 Peter 3:14

14 Therefore, beloved, since you look for these things, be diligent to be found by Him in peace, spotless and blameless,