And when he had opened the fourth seal. (See Barnes on Revelation 5:1).

I heard the voice of the fourth beast say. The flyi…

The fourth seal.—And when He opened the fourth seal, I heard the voice of the fourth living being, saying, Come. And I saw, an…

And when he had opened the fourth seal
Of the seven seals of the sealed book; that is, when the Lamb had opened it, …

Christ, the Lamb, opens the first seal: observe what appeared. A rider on a white horse. By the going forth of this white horse, a time of peace, o…