The last part of 2 Peter reminds us to think wholesomely, remember the words of the prophets and to anticipate the last days. It then goes on to describe the end of days. They seem awesome and terrifying at the same time, but Peter reminds us that our gaze will be on the arrival of God’s promises: the new heaven and the new earth.
We are to remember the prophet’s commands and the words of Jesus. This means, I expect, that we need to know them well and probably try to remember them. This will help us be blameless and spotless on the day of judgement. It may be that the day of judgement does not come in my time, but I need to remember that patience equals salvation. There’s a lovely verse: “The Lord is not slow in keeping his promise, as some understand slowness. Instead he is patient with you, not wanting anyone to perish, but everyone to come to repentance.” (v. 9) Of course, that doesn’t mean that everyone goes to heaven and it’s like the handouts at the Oprah Winfrey Show. It just means that God’s heart is leans toward salvation not toward condemnation.
Peter warns that we need to be on our guard so that we don’t fall away. This probably is in the context of the previous chapter. And how do we go about doing this? We grow in grace and our knowledge of Jesus Christ. I think this takes us back to the very beginning of the letter, remembering that God has given all that we need. We need to be living according to the promises of God’s salvation and learn more about Jesus. This is also linked to the statement to remember the words of Jesus. By doing this, and daily reminding ourselves of them, we are able to know Jesus more and more.
We need to be reading our Bible and just seeking a deeper knowledge of Jesus in everything we learn.