3:1-6. The Lord Jesus is He that hath the Holy Spirit with all his powers, graces, and operations. Hypocrisy, and lamentable decay in religion, are sins charged upon Sardis, by One who knew that church well, and all her works. Outward things appeared well to men, but there was only the form of godliness, not the power; a name to live, not a principle of life. There was great deadness in their souls, and in their services; numbers were wholly hypocrites, others were in a disordered and lifeless state. Our Lord called upon them to be watchful against their enemies, and to be active and earnest in their duties; and to endeavour, in dependence on the grace of the Holy Spirit, to revive and strengthen the faith and spiritual affections of those yet alive to God, though in a declining state. Whenever we are off our watch, we lose ground. Thy works are hollow and empty; prayers are not filled up with holy desires, alms-deeds not filled up with true charity, sabbaths not filled up with suitable devotion of soul to God. There are not inward affections suitable to outward acts and expressions; when the spirit is wanting, the form cannot long remain. In seeking a revival in our own souls, or the souls of others, it is needful to compare what we profess with the manner in which we go on, that we may be humbled and quickened to hold fast that which remains. Christ enforces his counsel with a dreadful threatening if it should be despised. Yet our blessed Lord does not leave this sinful people without some encouragement. He makes honourable mention of the faithful remnant in Sardis, he makes a gracious promise to them. He that overcometh shall be clothed in white raiment; the purity of grace shall be rewarded with the perfect purity of glory. Christ has his book of life, a register of all who shall inherit eternal life; the book of remembrance of all who live to God, and keep up the life and power of godliness in evil times. Christ will bring forward this book of life, and show the names of the faithful, before God, and all the angels, at the great day.

5. white—not a dull white, but glittering, dazzling white [Grotius]. Compare Mt 13:43. The body transfigured into the likeness of Christ's body, and emitting beams of light reflected from Him, is probably the "white raiment" promised here.

the same—Greek, "THIS man"; he and he alone. So one oldest manuscript reads. But two oldest manuscripts, and most of the ancient versions, "shall THUS be clothed," &c.

raiment—Greek, "garments." "He that overcometh" shall receive the same reward as they who "have not defiled their garments" (Re 3:4); therefore the two are identical.

I will not—Greek, "I will not by any means."

blot out … name out of … book of life—of the heavenly city. A register was kept in ancient cities of their citizens: the names of the dead were of course erased. So those who have a name that they live and are dead (Re 3:1), are blotted out of God's roll of the heavenly citizens and heirs of eternal life; not that in God's electing decree they ever were in His book of life. But, according to human conceptions, those who had a high name for piety would be supposed to be in it, and were, in respect to privileges, actually among those in the way of salvation; but these privileges, and the fact that they once might have been saved, shall be of no avail to them. As to the book of life, compare Re 13:8; 17:8; 20:12, 15; 21:27; Ex 32:32; Ps 69:28; Da 12:1. In the sense of the "call," many are enrolled among the called to salvation, who shall not be found among the chosen at last. The pale of salvation is wider than that of election. Election is fixed. Salvation is open to all and is pending (humanly speaking) in the case of those mentioned here. But Re 20:15; 21:27, exhibit the book of the elect alone in the narrower sense, after the erasure of the others.

before … before—Greek, "in the presence of." Compare the same promise of Christ's confessing before His Father those who confessed Him, Mt 10:32, 33; Lu 12:8, 9. He omits "in heaven" after "My Father," because there is, now that He is in heaven, no contrast between the Father in heaven and the Son on earth. He now sets His seal from heaven upon many of His words uttered on earth [Trench]. An undesigned coincidence, proving that these epistles are, as they profess, in their words, as well as substance, Christ's own addresses; not even tinged with the color of John's style, such as it appears in his Gospel and Epistles. The coincidence is mainly with the three other Gospels, and not with John's, which makes the coincidence more markedly undesigned. So also the clause, "He that hath an ear, let him hear," is not repeated from John's Gospel, but from the Lord's own words in the three synoptic Gospels (Mt 11:15; 13:9; Mr 4:9, 23; 7:16; Lu 8:8; 14:35).