The Mysteries of Saint John the Apostle and Holy Virgin 7

1And I saw another great and wonderful thing. Whilst I John was looking at the angels as they were all divided into ranks, I found that the name of Michael was written upon all their garments, and that the angels were crying out his name always. And I answered and said unto the Cherubim, 'How doth it come to pass that the name of Michael is written upon their garments? And wherefore do they cry it out?' And the Cherubim answered and said unto me, 'No angel is allowed to come upon the earth unless the name of Michael is written upon his garments, for otherwise the Devil would lead them astray.'
2After this I saw a great fountain of water, whereof the waters were as white as snow, or as I might say, its waters were like unto milk, and there was an angel standing above it, and his wings were dipped in the water. And the place round about the fountain was planted with trees which were laden with fruit, and the fruits thereof were of a very great many different kinds. And this fountain was like unto a sea, and every tree which grew by the side of it consisted entirely of one branch.
3And I, John, saw another great and wonderful thing there. I saw the root of a tree which emitted water into the fountain. And I said unto the Cherubim, 'My Lord, explain to me the matter of this fountain, the water whereof is white, and the matter of this angel, which standeth above it.' The Cherubim said unto me, 'This is the fountain which poureth out the dew upon the earth.' I said unto him, 'How is it that this angel is standing above it, with his wings always dipped in the waters of the fountain?' The Cherubim said unto me, 'Seest thou this angel? His work is this. Every time the trumpet soundeth he riseth up, and he shaketh his wings which are full of dew, and he smiteth the heavens therewith, and the heavens open, one beyond the other, so that the dew may distil through them upon the earth.' And I said unto the Cherubim, 'In what way do these Seven Heavens open, one beyond the other, so that the daylight may penetrate them and fall upon the world?' And the Cherubim answered and said unto me, 'Hearken, and I will explain everything to you. There are seven trumpets appointed over the dew, and all these are wont to sound before the dew cometh upon the earth. When the first trumpet soundeth, and the second, and so on until the seventh, the dew followeth the sound of the trumpets from one heaven to the other. The seventh trumpet belongeth to Michael, and when Michael bloweth his trumpet, the dew runneth swiftly, and all the governors withdraw, until it cometh upon the earth in order to make all the fruits to swell (or, increase).'
See also: Revelation 8:2