14 Therefore, beloved, since you look for these things, be diligent to be found by Him in peace, spotless and blameless, 15 and regard the patience of our Lord as salvation; just as also our beloved brother Paul, according to the wisdom given him, wrote to you, 16 as also in all his letters, speaking in them of these things, in which are some things hard to understand, which the untaught and unstable distort, as they do also the rest of the Scriptures, to their own destruction. 17 You therefore, beloved, knowing this beforehand, be on your guard so that you are not carried away by the error of unprincipled men and fall from your own steadfastness, 18 but grow in the grace and knowledge of our Lord and Savior Jesus Christ. To Him be the glory, both now and to the day of eternity. Amen." 2 Pet. 3:14-18
"Now, little children, abide in Him, so that when He appears, we may have confidence and not shrink away from Him in shame at His coming." 1 John 2:28
The concluding paragraph of the book is a summary of the argument of the entire letter (2 Pet. 3:14-18). Faith in the Scriptures is fundamental to a fruitful life, and failure to follow is finally fatal (2 Pet. 3:14-16). Those who wrest the Scriptures from their true meaning manifest that they are unlearned and unstable, and they do so to their own destruction. Fruit in the life is the unfailing evidence that there is faith (vv. 17-18). It is, therefore, right and proper to beware of being led away with the error of the wicked lest one fall from his own steadfastness. This now brings Peter to the place from which he started. "But grow in the grace and knowledge of our Lord and Savior Jesus Christ." This will give every believer confidence, and he will not be ashamed before Him at His coming (1 John 2:28).