The Seven Thunders

John saw another mighty angel come down from heaven in his vision, in Revelation 10.  He went into much more detail in his description of this angel than any other.  The angel was dressed in a cloud, and had a rainbow on his head.  He was very bright and shining, having a face that shone like the sun, and feet that looked like fire.  He put one of his fiery feet on the sea, and one of them on the earth, showing dominion.  The angel must have been something to see.  Why would he have a rainbow on his head?  Maybe there is a connection with the Flood in Genesis, and the rainbow being given by God after the Flood as a token that God wouldn't flood the earth again, not completely at least.  This angel appeared in the vision between the sounding of the sixth and seventh trumpet, and when the seventh trumpet sounds, the final series of disastrous judgments of God are to be sent to the earth.
When this angel cried out, it was like a lion roaring, and "seven thunders uttered their voices."  Then John heard a voice from heaven telling him not to write anything that they said.  OK.
But the angel went on to say that when the seventh angel sounded his trumpet, "time would be no longer."  What this means is that there will be no more delay in the bringing the last seven judgments, the Seven Vials judgments.  These are the worst.  The sounding of the seventh trumpet introduces the final Seven Vials judgments.
The angel was holding a little scroll, and John heard the voice from heaven again telling him to take the scroll out of the angel's hand and eat it.  So John walked up to the angel and asked for the scroll.  The angel told him to take it and eat it.  It would be sweet to the taste but it would turn bitter in his stomach. What is this scroll?  Some say the scroll is the Word of God, which he was to thoroughly digest.  But why would it be little?  Some say it is a record of the vision John had.  I would say "Peruse this document carefully."
No one knows anything about the seven thunders, except that we don't know.
Next, in Revelation 11, is the prophesying of the Two Witnesses.