If you can remember 10 weeks ago when we began this series on 2 Peter, I pointed out that the letter begins and ends on the same note of grace and knowledge. I want you to see that again now and how it sums up the main point of the letter. Though the language is somewhat different it seems to me the point is the same. Grace is what we crave when we are guilt-laden. Grace is what we must have when we come to die.
Grace is our only ray of hope when the future darkens over with storm clouds of fear.
The best fertilizer for our hope and godliness is the knowledge of our future in God's grace. The message of 2 Peter is that the joy of hope is the power of godliness. And the promises, the power, the hope and the godliness are all because of his grace.