2 Peter 1:5; 2 Peter 1:10; 2 Peter 1:19; 2 Peter 3:1

2 Peter 1:5

5 For this very reason, make every effort to add to your faith goodness; and to goodness, knowledge;

2 Peter 1:10

10 Therefore, my brothers and sisters, make every effort to confirm your calling and election. For if you do these things, you will never stumble,

2 Peter 1:19

19 We also have the prophetic message as something completely reliable, and you will do well to pay attention to it, as to a light shining in a dark place, until the day dawns and the morning star rises in your hearts.

2 Peter 3:1

1 Dear friends, this is now my second letter to you. I have written both of them as reminders to stimulate you to wholesome thinking.