In peace, without spot, and blameless— By the words in peace, some understand that they should be at peace with their own consciences; others, that the Christians should be at peace with one another, or with mankind in general. But it seems more likely, that St. Peter means they should endeavour to be found at last in peace with their great Judge; and that, by endeavouring in this life, under divine grace, to be without spot and blemish. The corrupt Christians are called spots and blemishes among the Christians at their love-feasts: in opposition to such a character, the true Christians were to keep themselves without spot or blemish. See 1 Peter 1:19.
Related Commentaries of 2 Peter 3:14
2 Peter 3:14
14 Wherefore, beloved, seeing that ye look for such things, be diligent that ye may be found of him in peace, without spot, and blameless.