Albert Barnes Commentary Revelation 14:7

"and he saith with a great voice, Fear God, and give him glory; for the hour of his judgment is come: and worship him that made the heaven and the earth and sea and fountains of waters." — Revelation 14:7 (ASV)

Saying with a loud voice. As if all the nations were summoned to hear.

Fear God. That is, reverence, honor, and obey God. Render homage not to the beast, to his image, or to any idol, but to the only true God. This is the substance of the gospel—its end and design—to turn people from all forms of idol worship and superstition to the worship of the only true God.

And give glory to him. To give glory to him is to acknowledge him as the only true God; to set up his pure worship in the heart; and to praise him as the great Ruler of heaven and earth.

For the hour of his judgment has come. His judgment on the beast and on those who worship him. The imagery here is substantially the same as in Daniel 7:9-10, 14, 26-27, and there can be no doubt that there is reference to the same subject. (See Barnes on Daniel 7:9 and following).

The main idea is this: when God is about to cause his gospel to spread through the world, there will be, as it were, a solemn judgment on that Antichristian power which had so long resisted his truth and persecuted his saints. Then, on the fall of that power, his own kingdom will be set up on the earth. That is, in the language of Daniel, the kingdom, and the dominion, and the greatness of the kingdom under the whole heaven, shall be given to the people of the saints of the Most High.

And worship him that made heaven, and earth, etc. The true God, the Creator of all things. As already remarked, this is the ultimate design of the gospel, and, when this is accomplished, the great end for which it was revealed will be reached.

The design of this portion of the chapter (Revelation 14:6–7) was also to comfort those to whom the book was addressed, and in the same way to comfort the church in all the persecution and opposition which the truth would encounter.

The ground of consolation then was that a time was predicted when the everlasting gospel would fly speedily through the earth, and when it would be announced that a final judgment had come upon the Antichristian power which had previously prevented its diffusion over the face of the world.

The same ground of encouragement and consolation exists now, and all the more so as we see the day approaching. In all times of despondency, we should allow our hearts to be cheered as we see that great Antichristian power waning, and as we see evidence that the way is thus being prepared for the rapid and universal diffusion of the pure gospel of Christ.