In the first several verses of Peter’s second letter, he tells the readers about the grace of God that saves them and about how they should live. Peter goes on to say, “I think it right, as long as I am in this body, to stir you up by way of reminder…” (2 Peter 1:13). What he’s saying is, “As long as I am still alive, I am going to keep pointing you toward what’s really important.” He doesn’t want them to forget or neglect such important truths.
Then Peter adds this comment, “Since I know that the putting off of my body will be soon…” (vs. 14). In other words, Peter is aware that he doesn’t have long to live. As a result, he is trying to make as big an impact as possible in the short time he has left.
Finally, Peter says, “I will make every effort so that after my departure you will be able at any time to recall these things” (vs. 15). Every effort. He is expending the necessary energy to be sure those he cares about – the faithful in Christ – are continuing to progress in their faith.
Peter is endeavoring to leave a legacy. But he’s not doing it so that people will remember him. His motivation is so that their lives will make a difference, just as his life has made a difference.
What about you? Are you encouraging others in their faith? Will the lives of those around you be different – better – because of your efforts? I pray they will be.
To Make You Think 
Peter was acting in obedience to the burning desire Jesus planted in him beside the campfire–to feed His lambs.