And when the seven thunders had uttered their voices, I was about to write: and I heard a voice from heaven saying unto me, Seal up those things which the seven thunders uttered, and write them not. (Revelation 10:4)
John understands the voices of the seven thunders, and is prepared to record their message. The present passage indicates that John recorded the visions of the Revelation as they were shown him, and not at a later date.
Seal up.
Like Daniel, long before, John is now hidden to “seal up” the revelation that had come to him (see Dan. 12:4). Paul also, in vision, had heard “unspeakable words, which it is not lawful for a man to utter” (2 Cor. 12:4). The messages of the seven thunders obviously were not a revelation for the people of John’s day. They doubtless revealed details of the messages that were to be proclaimed at “the time of the end” (Dan. 12:4; cf. on Rev. 10:2). Thus they may be understood as a portrayal of events that would occur in connection with the proclamation of the first and second angel’s messages (ch. 14:6-8; see EGW Supplementary Material on ch. 10:1-11).