2 Peter 3:15

And consider that the patience of our Lord is for salvation. Do not think that the Lord delays his promise, but understand that he is patiently waiting for this reason, that more might be saved.

Just as our most beloved brother Paul wrote to you according to the wisdom given to him. He recalls that Paul wrote to them, because even if Paul wrote to certain churches specifically, it is proven that he wrote generally to all the churches that …

Paul wrote about this when he said: "the goodness of God leads you to repentance" (Rom. 2:4). If the longsuffering of God leads to repentance, and repentance is salvific for us, then it is evident that the longsuffering of God serves for our own benefit …

And account the longsuffering of the Lord salvation - Not only designed to lead men to repentance, but actually conducing thereto: a precious means of saving many more souls. As our beloved brother Paul also hath written to you - This refers not only to the single sentence preceding, but to all that went before.

And account that the longsuffering of our Lord,....

To quicken and excite us to a serious minding and firm adhering to what God has revealed to us by the prophets and apostles, we are told that there will be scoffers, men who will make a mock of sin, and of salvation from it. God's way of saving sinners by Jesus Christ is what men will scoff at, and that in the last days, under the gospel.

And account - that “the long-suffering of our Lord” is “salvation.” Regard his delay in coming to judge the world, not as an evidence that he never will come, but as a proof of his desire that we should be saved. Many had drawn a different inference from the fact that the Saviour did not return, and had supposed that it was a proof that he would never come, and that his promises had failed.

Col 3:4 refers to Christ's second coming. The Epistle to the Hebrews, too (addressed not only to the Palestinian, but also secondarily to the Hebrew Christians everywhere), may be referred to, as Peter primarily (though not exclusively) addresses in both Epistles the Hebrew Christians of the dispersion (see on 1Pe 1:1).

JESUS IS WELL CALLED "our Lord," let us at the commencement adore him. Let us each one cry to him, "My Lord, and my God." It is a long, time since our Lord went up to heaven, and he said that he would come again. Evidently, some of those who best understood him misunderstood him, and thought that he would surely come again even in their lifetime. He said that he would come, and faithful ones in all ages have looked for him, and it is not possible that our Lord can have deceived us.

JESUS IS WELL CALLED "our Lord," let us at the commencement adore him. Let us each one cry to him, "My Lord, and my God." It is a long, time since our Lord went up to heaven, and he said that he would come again. Evidently, some of those who best understood him misunderstood him, and thought that he would surely come again even in their lifetime. He said that he would come, and faithful ones in all ages have looked for him, and it is not possible that our Lord can have deceived us. Because he is so sweetly our Lord, our brethren have made sure that he will keep his word; and he will. But certain of them have gone beyond our Lord's promise, and have felt sure that they knew when he would come; and they have been bitterly disappointed because the hour which they fixed passed over, and he did not appear. This does not prove that he will not come. The day is certainly nearer, and every hour is hastening his coming. "Behold, he cometh with clouds, and every eye shall see him." But why are his chariots so long in coming? Why does he delay? The world grows grey, not alone with age, but with iniquity; and yet the Deliverer comes not. We have waited for his footfall at the dead of night, and looked out for him through the gates of the morning, and expected him in the heat of the day, and reckoned that he might come ere yet another sun went down; but he is not here! He waits. He waits very, very long. Will he not come? Longsuffering is that which keeps him from coming. He is bearing with men. Not yet the thunderbolt! Not yet the riven heavens and the reeling earth! Not yet the great white throne, and the day of judgment; for he is very pitiful, and beareth long with men! Even to the cries of his own elect, who cry day and night unto him—he is not in haste to answer,-for he is very patient, slow to anger, and plenteous in mercy. But his patience sometimes greatly puzzles us.

And account that the long-suffering of our Lord - Conclude that God’s long-suffering with the world is a proof that he designs men to be saved; even as our beloved brother Paul. “This epistle being written to those to whom the first epistle was sent, the persons to whom the Apostle Paul wrote concerning the long-suffering of God were the Jewish and Gentile Christians in Pontus, Galatia, Cappadocia, Asia, and Bithynia. Accordingly, we know he wrote to the Ephesians, (Eph 2:3-5), to the Colossians, (Col 1:21), and to Timothy, (1Ti 2:3, 1Ti 2:4), things which imply that God’s bearing with sinners is intended for their salvation. The persons to whom Peter’s epistles were sent were, for the most part, Paul’s converts.” - Macknight. According to the wisdom given unto him - That is, according to the measure of the Divine inspiration, by which he was qualified for the Divine work, and by which he was so capable of entering into the deep things of God. It is worthy of remark that Paul’s epistles are ranked among the Scriptures; a term applied to those writings which are divinely inspired, and to those only.