The greeting. This takes the form of a prayer or benediction in three articles. It is rendered in precisely the same terms—mercy unto you and peace and love be multiplied—in Tyndale, Cranmer, the Genevan, the Authorized Version, and the Revised Version.
In Paul's Epistles the opening salutations usually mention only "grace and peace," and these as proceeding from "God the Father and the Lord Jesus Christ." But in the pastoral Epistles (as also in 2 John) the three blessings, "grace, mercy, and peace," appear, and these as coming from the same twofold source of Father and Son.
In the Petrine Epistles we have again the two Pauline blessings of grace and peace, but with the distinctive addition of the "be multiplied." Here, in Jude, we have the characteristic Petrine "be multiplied," but this connected with three blessings, and these somewhat different from those which appear in the Pastoral Epistles—"mercy, peace, and love," instead of "grace and mercy and peace."
What the writer desires, therefore, on behalf of the readers is an abounding measure of the three great qualities of grace, which refer respectively to the case of the miserable, the case of the hostile, and the case of the unworthy.
Are these regarded as subjective qualities in man, or as objective gifts from God? The former view is favoured by some, who point especially to the closing benediction in the Epistle to the Ephesians (Ephesians 6:23) as a case in point.
But the latter view is sustained by the force of the "beloved" in the previous verse, and the mention of" love" in verse 21, as well as by the general analogy of the inscriptions of Epistles. What Jude prays for, therefore, is not that his readers may be helped to exhibit in large measure a merciful, peaceful, and loving disposition to others, but that they may enjoy in liberal degree the great blessings of God's mercy, peace, and love bestowed upon themselves.