John Gill emphasizes the importance of remembering the teachings of both the holy prophets and the apostles, as outlined in 2 Peter 3:2. He highlights that the words of the prophets, which include prophecies about Christ's coming and the establishment of a new heaven and earth, should be retained in the minds of believers. Additionally, he stresses the significance of the commandments given by the apostles, which are rooted in the teachings of Jesus Christ. Gill points out that both the prophets and apostles convey a unified message regarding the second coming of Christ and the need for believers to heed their instructions. This sermon serves as a reminder for Christians to stay mindful of these foundational truths as they navigate their faith.

Ver. 2. That ye may be mindful,.... This is an explanation of the above mentioned end of his writing this and the other epistle; which was, that those saints might be mindful of two things more especially: of the words which were spoken before by the holy prophets; that is, the prophets of the Old Testament, who were holy men of God, and therefore their words are to be regarded, and retained in memory; the Gospel itself was spoken by them, and so was Christ, and the things relating to his person and offices, and to his incarnation, sufferings, and death, and the glory that should follow; and indeed the apostles said no other than what they did, only more clearly and expressly; and particularly many things, were said by them concerning the second coming of Christ to judge the world, and destroy it, and to prepare new heavens and a new earth for his people, which is what the apostle has chiefly in view; see Jude 1:14; and of the commandment of us the apostles of the Lord and Saviour; that is, Jesus Christ, as Jude 1:17 expresses it, and the Ethiopic version adds here; and which likewise, and also the Syriac version, and some ancient copies, read, "our Lord and Saviour", and omit the us before the apostles; by whom are meant the twelve apostles of Christ, of which Peter was one, and therefore says, "us the apostles"; though the Vulgate Latin and Arabic versions, and the Complutensian edition, read "your apostles", and so the Alexandrian copy; but the former is the received reading: now "the commandment" of these intends either the Gospel in general, so called because it was the commandment of our Lord to his apostles to preach it; and therefore the word "commandment", in the original, stands between "us the apostles", and "the Lord and Saviour", as being the commandment of the one to the other; unless it can be thought any regard is had to the new commandment of love, or that of faith, inculcated both by Christ and his apostles; Joh 13:34; or rather, particularly the instructions, directions, and predictions of the apostles concerning the second coming of Christ, and what should go before it, as appears from the following words, and the parallel place in Jude 1:17, the words of the prophets and apostles being here put together, show the agreement there is between them, and what regard is to be had to each of them, and to anything and every thing in which they agree.