Therefore, beloved, since you already know these things, be on your guard so that you will not be carried away by the error of the lawless and fall from your secure standing.
17. Ye, therefore, beloved. After having shewn to the faithful the dangers of which they were to beware, he now concludes by admonishing them to be wise. But he shews that there was need of being watchful, lest they should be overwhelmed. And, doubtless, the craft of our enemy, the many and various treacheries which he employs against us, the cavils of ungodly men, leave no place for security.
Sin has corrupted all creation, and it cannot be freed without dissolution. If man's transgression has brought such ruin, how abominable sin is and how much we must hate it. You must labor to be eminent in holiness, not content with a lower measure, holy in God's house and your own, in worship and in all your dealings with men.
AI summary
Commenting on 2 Peter 3:11-18
Ye therefore, beloved, seeing ye know these things before,.... As that there will be such mockers and scoffers in the last days, and such unlearned and unstable men that will deprave the Scriptures, and wrest them in such a miserable manner: beware lest ye also, being led away with the error of the wicked; from the simplicity of the Gospel, along with such wicked men...