Jude 1:4

Perverting the grace of our Lord into licentiousness. The grace of our Lord has softened the hardness of the law, because when it said, If anyone does this or that, let them be stoned; if anyone does this or that, let them be burned with …

And denying the only Sovereign and Lord, our Lord Jesus Christ. Our Lord Jesus Christ is the only Sovereign with the Father and the Holy Spirit, just as the Father is the only Sovereign with the Son and the Holy Spirit, and just as the …

He exhorts those who once acknowledged our Lord Jesus Christ as Savior and believed in Him, to contend for the faith. For if we have accepted the incarnate Word and yet say that He Who is from the Father before the ages is one, and …

There are certain men crept in, who were of old described before - Even as early as Enoch; of whom it was foretold, that by their wilful sins they would incur this condemnation. Turning the grace of God - Revealed in the gospel.

For there are certain men crept in unawares,....

A caution against hearkening to and following after such, from the severity of God towards the unbelieving murmuring Israelites at their coming out of Egypt, the angels that fell, the sin and punishment of Sodom and Gomorrah,

For there are certain men crept in unawares - Παρεισεδυσαν· They had got into the Church under specious pretences; and, when in, began to sow their bad seed. Before of old ordained - Οἱ παλαι προγεγραμμενοι Such as were long ago proscribed, and condemned in the most public manner; this is the import of the word προγραφειν in this place, and there are many examples of this use of it in the Greek writers. See Kypke. To this condemnation - To a similar punishment to that immediately about to be mentioned.

Translate as the Greek, "the only Master"; here used of Jesus Christ, who is at once Master and "Lord" (a different Greek word). By virtue of Christ's perfect oneness with the Father, He, as well as the Father, is termed "the ONLY" God and "MASTER." Greek, "Master," implies God's absolute ownership to dispose of His creatures as He likes.

For there are certain men crept in unawares - The apostle now gives “reason” for thus defending the truth, to wit, that there were artful and wicked men who had crept into the church, pretending to be religious teachers, but whose doctrines tended to sap the very foundations of truth. The apostle Peter, describing these same persons, says, “who privily shall bring in damnable heresies.” See the notes, 2Pe 2:1. Substantially the same idea is expressed here by saying that they “had crept in unawares;” that is, they had come in “by stealth;” they had not come by a bold and open avowal of their real sentiments. They professed to teach the Christian religion, when in fact they denied some of its fundamental doctrines; they professed to be holy, when in fact they were living most scandalous lives. In all ages there have been men who were willing to do this for base purposes. Who were before of old ordained to this condemnation - That is, to the condemnation (κρίμα krima) which he proceeds to specify. The statements in the subsequent part of the Epistle show that by the word used here he refers to the wrath that shall come upon the ungodly in the future world. See Jud 1:5-7, Jud 1:15. The meaning clearly is, that the punishment which befell the unbelieving Israelites Jud 1:5; the rebel angels Jud 1:6; the inhabitants of Sodom Jud 1:7; and of which Enoch prophesied Jud 1:15, awaited those persons. The phrase “of old” - πάλαι palai - means “long ago,” implying that a considerable time had elapsed, though without determining how much. […]