Reminder Of What Life Is All About 

2 Peter 1:12-15 (NASB)
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.
¹³  I consider it right, as long as I am in this earthly dwelling, to stir you up by way of reminder,
¹⁴  knowing that the laying aside of my earthly dwelling is imminent, as also our Lord Jesus Christ has made clear to me.
¹⁵  And I will also be diligent that at any time after my departure you will be able to call these things to mind.

1.     Life Is About Christ, Be Ready To Share

2 Peter 1:12 (NASB)
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 1:1-3 (NASB)
¹  Simon Peter, a bond-servant and apostle of Jesus Christ, To those who have received a faith of the same kind as ours, by the righteousness of our God and Savior, Jesus Christ:
²  Grace and peace be multiplied to you in the knowledge of God and of Jesus our Lord;
³  seeing that His divine power has granted to us everything pertaining to life and godliness, through the true knowledge of Him who called us by His own glory and excellence.

2.     Life Is Brief, Be Intentional To Remind

2 Peter 1:13-14 (NASB)
¹³  I consider it right, as long as I am in this earthly dwelling, to stir you up by way of reminder,
¹⁴  knowing that the laying aside of my earthly dwelling is imminent, as also our Lord Jesus Christ has made clear to me.

John 21:18-19 (NASB)
¹⁸  "Truly, truly, I say to you, when you were younger, you used to gird yourself and walk wherever you wished; but when you grow old, you will stretch out your hands and someone else will gird you, and bring you where you do not wish to go."
¹⁹  Now this He said, signifying by what kind of death he would glorify God. And when He had spoken this, He *said to him, "Follow Me!"

3.     Life Is Purposeful, Be Diligent To Equip

2 Peter 1:15 (NASB)
¹⁵  And I will also be diligent that at any time after my departure you will be able to call these things to mind.