Revelation 10:4

I was about to write See Revelation 1:19. It is useless to speculate how far the book was written at the same time that the vision was seen: possibly it may have been in part, but it is enough to suppose that, having been bidden to write, the seer seemed to himself to write, or (so to speak) saw himself writing, at appropriate points of the vision.

Seal up Cf. Daniel 12:4; Daniel 12:9. There the use of the words is more logical: Daniel is to write the vision, but not to let it be read: contrast in this book Revelation 22:10. Here the use of the word is suggested by the passage in Daniel in the impassioned style of this book it is forgotten that what is not written cannot and need not be sealed. Whythe voices of the thunders were not to be written it is idle to guess: it is worse than idle to guess what they were. And in our ignorance of this it is hardly possible that we should be able to identity the mission of this angel with any special dispensation of God yet known.