Who shall not fear thee, O Lord, and glorify thy name? for thou only art holy: for all nations shall come and worship before thee; for thy judgments are made manifest.

People's New Testament

15:4 Who shall not fear thee? The judgments now given to the seven angels showed that God is a consuming fire, as well as a sun and a shield. We are left in no doubt concerning the identity of these singers. They are them that had gained the victory over the beast, etc. (Re 15:2). The ground of their rejoicing is also recorded.

For thy judgments are made manifest. The mighty arm of God is to be revealed in bringing to naught the powers of evil, and especially all the great enemies over whom they had been victorious. The saints who have undergone the persecution of the beast are represented as rejoicing because the day of its judgment has come.

Jamieson-Fausset-Brown Bible Commentary

4. Who shall not-Greek, "Who is there but must fear Thee?" Compare Moses' song, Ex 15:14-16, on the fear which God's judgments strike into the foe.

thee-so Syriac. But A, B, C, Vulgate, and Cyprian reject "thee."

all nations shall come-alluding to Ps 22:27-31; compare Isa 66:23; Jer 16:19. The conversion of all nations, therefore, shall be when Christ shall come, and not till then; and the first moving cause will be Christ's manifested judgments preparing all hearts for receiving Christ's mercy. He shall effect by His presence what we have in vain tried to effect in His absence. The present preaching of the Gospel is gathering out the elect remnant; meanwhile "the mystery of iniquity" is at work, and will at last come to its crisis; then shall judgment descend on the apostates at the harvest-end of this age (Greek, Mt 13:39, 40) when the tares shall be cleared out of the earth, which thenceforward becomes Messiah's kingdom. The confederacy of 'the apostates against Christ becomes, when overthrown with fearful judgments, the very means in God's overruling providence of preparing the nations not joined in the Antichristian league to submit themselves to Him.

judgments-Greek, "righteousnesses."

are-literally, "were": the prophetical past for the immediate future.

Matthew Henry's Concise Commentary

15:1-4 Seven angels appeared in heaven; prepared to finish the destruction of antichrist. As the measure of Babylon's sins was filled up, it finds the full measure of Divine wrath. While believers stand in this world, in times of trouble, as upon a sea of glass mingled with fire, they may look forward to their final deliverance, while new mercies call forth new hymns of praise. The more we know of God's wonderful works, the more we shall praise his greatness as the Lord God Almighty, the Creator and Ruler of all worlds; but his title of Emmanuel, the King of saints, will make him dear to us. Who that considers the power of God's wrath, the value of his favour, or the glory of his holiness, would refuse to fear and honour him alone? His praise is above heaven and earth.