Looking for that blessed hope, and the glorious appearing of the great God and our Saviour Jesus Christ; Looking for that blessed hope - Expecting the grand object of our hope, eternal life. See Titus 1:2. This is what the Gospel teaches us to expect, and what the grace of God prepares the human heart for. This is called a blessed hope; those who have it are happy in the sure prospect of that glory which shall be revealed.
The glorious appearing - Και επιφανειαν της δοξης του μεγαλου Θεου και σωτηρος ἡμων Ιησου Χριστου. This clause, literally translated, is as follows: And the appearing of the glory of the great God, even our Savior Jesus Christ. On this passage I must refer the reader to the Essay on the Greek Article, by H. S. Boyd, Esq., appended to the notes on the Epistle to the Ephesians, where both the structure and doctrine of this passage are explained at large.
Some think that the blessed hope and glorious appearing mean the same thing; but I do not think so. The blessed hope refers simply to eternal glorification in general; the glorious appearing, to the resurrection of the body; for when Christ appears he will change this vile body, and make it like unto his Glorious Body, according to the working by which he is able even to subdue all things to himself. See Philippians 3:20, Philippians 3:21.