Commentaries
3:1-4 The purified minds of Christians are to be stirred up, that they may be active and lively in the work of holiness. There will be scoffers in the last days, under the gospel, men who make light of sin, and mock at salvation by Jesus Christ. One very principal article of our faith refers to what only has a promise to rest upon, and scoffers will attack it till our Lord is come. They will not believe that he will come. Because they see no changes, therefore they fear not God, Ps 55:19. What he never has done, they fancy he never can do, or never will do.
CHAPTER 3
2Pe 3:1-18. Sureness of Christ's Coming, and Its Accompaniments, Declared in Opposition to Scoffers about to Arise. God's Long Suffering a Motive to Repentance, as Paul's Epistles Set Forth; Concluding Exhortation to Growth in the Knowledge of Christ.
1. now—"This now a second Epistle I write." Therefore he had lately written the former Epistle. The seven Catholic Epistles were written by James, John, and Jude, shortly before their deaths; previously, while having the prospect of being still for some time alive, they felt it less necessary to write [Bengel].
unto you—The Second Epistle, though more general in its address, yet included especially the same persons as the First Epistle was particularly addressed to.
pure—literally, "pure when examined by sunlight"; "sincere." Adulterated with no error. Opposite to "having the understanding darkened." Alford explains, The mind, will, and affection, in relation to the outer world, being turned to God [the Sun of the soul], and not obscured by fleshly and selfish regards.
by way of—Greek, "in," "in putting you in remembrance" (2Pe 1:12, 13). Ye already know (2Pe 3:3); it is only needed that I remind you (Jude 5).