2 Peter 3:17

There must be a great deal of self-denial and suspicion of ourselves, and submitting to the authority of Christ Jesus our great prophet, before we can heartily receive all the truths of the gospel, and therefore we are in great danger of rejecting the truth.

Seeing that ye know these things before - Being aware of this danger, and knowing that such results may follow. People should read the Bible with the feeling that it is possible that they may fall into error, and be deceived at last. This apprehension will do much to make them diligent, and candid, and prayerful, in studying the Word of God. With the error of the wicked - Wicked men. Such as he had referred to in 2 Pet. 2, who became public teachers of religion. Fall from your own steadfastness - Your firm adherence to the truth.

The Apostle has told us that there will come, in the last days, scoffers. We, therefore, know this is to be the case, for we have been informed concerning it. Forewarned is forearmed and now that we see the scoffers and cannot help seeing them, we perceive another proof of the truth of Scripture. Every time a blasphemer opens his mouth to deny the truth of Revelation, he will help to confirm us in our conviction of the very Truth of God which he denies!

The Apostle has told us that there will come, in the last days, scoffers. We, therefore, know this is to be the case, for we have been informed concerning it. Forewarned is forearmed and now that we see the scoffers and cannot help seeing them, we perceive another proof of the truth of Scripture. Every time a blasphemer opens his mouth to deny the truth of Revelation, he will help to confirm us in our conviction of the very Truth of God which he denies! The Holy Spirit told us, by the pen of Peter, that it would be so, and now we see how truly he wrote. I do not think it is of any use to sit down and fret about the badness of the times. Ever since I first understood anything, I have always heard that there has been "a crisis." Somebody or other has continually assured me that we were just on the brink of something perfectly horrible. I have never been quite able to see that the times at any particular period have been very much worse than they used to be. Thirty years ago they seemed to me to be about as bad as they could be—and I could not see any room for their getting much worse! I used to, then, constantly hear laments about "the good old times," and I remember saying that the times, then, were the good old times, for time was never so old before. And, taking all things into account, I thought that, perhaps, the evils of that time were not so very much greater than the evils of the ages that had gone before. Still, I do incline a little to the belief that the times have become worse of late. At any rate, in this matter of scoffers! The scoffers who used to be in holes and corners have now come out into the open and, worse still, they have climbed into the pulpits! And if not there, actually to scoff, they insinuate doubts and undermine the faith of many who formerly believed.

Seeing ye know - before - Seeing that by prophets and apostles you have been thus forewarned, beware, φυλασσεσθε, keep watch, be on your guard; cleave to God and the word of his grace, lest ye be led away from the truth delivered by the prophets and apostles, by the error of the wicked, αθεσμων, of the lawless - those who wrest the Scriptures to make them countenance their lusts, exorbitant exactions, and lawless practices. Fall from your own steadfastness - From that faith in Christ which has put you in possession of that grace which establishes the heart.