Thus, in all the manifold forms in which restless hearts need peace, the grace of God brings it to them. The great river of mercy which has its source deep in the heart of God, and in His free, undeserved love, pours into poor, unquiet spirits, and there spreads itself into a placid lake, on whose still surface all heaven is mirrored.
The elliptical form of this salutation leaves it doubtful whether we are to see in it a prayer or a prophecy, a wish or an assurance. According to the probable reading of the parallel greeting in the second Epistle of John, the latter would be the construction; but probably it is best to combine both ideas, and to see here, as Bengel does in the passage referred to in John's Epistle, "votum cum affirmatione"--a desire which is so certain of its own fulfilment, that it is a prophecy, just because it is a prayer.
The ground of the certainty lies in the source from which the grace and peace come. They flow "from God the Father and the Lord Jesus Christ." The placing of both names under the government of one preposition implies the mysterious unity of the Father with the Son; while conversely St. John, in the parallel passage just mentioned, by employing two prepositions, brings out the distinction between the Father, who is the fontal source, and the Son, who is the flowing stream. But both forms of the expression demand for their honest explanation the recognition of the divinity of Jesus Christ. How dare a man, who thought of Him as other than Divine, put His name thus by the side of God's, as associated with the Father in the bestowal of grace? Surely such words, spoken without any thought of a doctrine of the Trinity, and which are the spontaneous utterance of Christian devotion, are demonstration, not to be gainsaid, that to Paul, at all events, Jesus Christ was, in the fullest sense, Divine. The double source is one source, for in the Son is the whole fulness of the Godhead; and the grace of God, bringing with it the peace of God, is poured into that spirit which bows humbly before Jesus Christ, and trusts Him when He says, with love in His eyes and comfort in His tones, "My grace is sufficient for thee"; "My peace give I unto you."