{15} But the word of the Lord endureth for ever. And this is the word which by the gospel is preached unto you.

(15) Again lest any man should seek that spiritual force and virtue in feigned imaginations, the apostle calls us back to the word of God: teaching us furthermore, that there is no other word of the Lord to be looked for than this that is preached, in which we must trust alone.

People's New Testament

1:25 The word of the Lord endureth forever. Like its author it is eternal and never loses its power.

And this is the word which by the gospel is preached unto you. That word was the gospel, the very gospel preached to them by Paul and his fellow ministers.

Jamieson-Fausset-Brown Bible Commentary

25. (Ps 119:89.)

this is the word . preached unto you-That is eternal which is born of incorruptible seed (1Pe 1:24): but ye have received the incorruptible seed, the word (1Pe 1:25); therefore ye are born for eternity, and so are bound now to live for eternity (1Pe 1:22, 23). Ye have not far to look for the word; it is among you, even the joyful Gospel message which we preach. Doubt not that the Gospel preached to you by our brother Paul, and which ye have embraced, is the eternal truth. Thus the oneness of Paul's and Peter's creed appears. See my [2613]Introduction, showing Peter addresses some of the same churches as Paul labored among and wrote to.

Matthew Henry's Concise Commentary

1:17-25 Holy confidence in God as a Father, and awful fear of him as a Judge, agree together; and to regard God always as a Judge, makes him dear to us as a Father. If believers do evil, God will visit them with corrections. Then, let Christians not doubt God's faithfulness to his promises, nor give way to enslaving dread of his wrath, but let them reverence his holiness. The fearless professor is defenceless, and Satan takes him captive at his will; the desponding professor has no heart to avail himself of his advantages, and is easily brought to surrender. The price paid for man's redemption was the precious blood of Christ. Not only openly wicked, but unprofitable conversation is highly dangerous, though it may plead custom. It is folly to resolve, I will live and die in such a way, because my forefathers did so. God had purposes of special favour toward his people, long before he made manifest such grace unto them. But the clearness of light, the supports of faith, the power of ordinances, are all much greater since Christ came upon earth, than they were before. The comfort is, that being by faith made one with Christ, his present glory is an assurance that where he is we shall be also, Joh 14:3. The soul must be purified, before it can give up its own desires and indulgences. And the word of God planted in the heart by the Holy Ghost, is a means of spiritual life, stirring up to our duty, working a total change in the dispositions and affections of the soul, till it brings to eternal life. In contrast with the excellence of the renewed spiritual man, as born again, observe the vanity of the natural man. In his life, and in his fall, he is like grass, the flower of grass, which soon withers and dies away. We should hear, and thus receive and love, the holy, living word, and rather hazard all than lose it; and we must banish all other things from the place due to it. We should lodge it in our hearts as our only treasures here, and the certain pledge of the treasure of glory laid up for believers in heaven.