Rainbow of God and the little book of life is in the hands of the living Word Christ Jesus.
Revelation 4:3
And he that sat was to look upon like a jasper and a sardine stone: and there was a rainbow round about the (HIS) throne, in sight like unto an emerald.
This is the rainbow that emanates from the throne of God and it is his covenant/promise to man.
If we take the same word rainbow and the definition explained in the verse above we have no question to the identity of the Almighty seventh Angel who speaks as the God authority, because when he speaks, the seven thunders utter their voices. The seven thunders uttering their voices implies that this Almighty Angel is the Living Word of God, the LOGOS.
Revelation 4:5
And out of the throne proceeded lightnings and thunderings and voices: and there were seven lamps of fire burning before the throne, which are the seven Spirits of God.
Revelation 10:1-2
And I saw THE LIVING WORD come down from heaven, clothed with a cloud: and a rainbow was upon his head, and his face was as it were the sun, and his feet as pillars of fire: And he had in his hand a little book open: and he set his right foot upon the sea, and his left foot on the earth,
This Almighty Angel has all the responsibility in the world by the majestic description that is reserved only for him.
He is declared to have dominion upon the sea, meaning all peoples from every nation.
He is declared to have dominion upon the earth, meaning creation/Genesis.
He is said to have in his possession The Book of Life, that no other angel has in their possession except him, because he is the only one worthy to open this book because he is the lamb slain from the beginning of the world.
His feet are pillars of fire as was described in:
Revelation 4:3
And he that sat was to look upon like a jasper and a sardine stone: and there was a rainbow round about the throne, in sight like unto an emerald.
The sardius, better known in our day as the carnelian, is red. Hengstenberg quotes ancient authorities who call it ‘blood-colored’ and takes it to describe the righteous wrath of God, the color of the fire of divine anger.”
So the feet are pillars of fire is describing this Almighty Angel has at his feet meaning at his immediate disposal, the righteousness wrath of God, where Sardis is the color of the fire of Devine anger declared in Rev 4:3, which is the exact parallel of FEET AS PILLARS OF FIRE.
He is declared to have a face like the sun, which depicts the vision on the mount of transfiguration shown to the disciples and it points to the highest Devine authority. The Almighty Angel has all the Devine authority on his shoulders and his face is the brilliance of God himself, the express image of his person.
Hebrews 1:3-4
Who being the brightness of his glory, and the express image of his person, and upholding all things by the word of his power, when he had by himself purged our sins, sat down on the right hand of the Majesty on high; Being made so much better than the angels, as he hath by inheritance obtained a more excellent name than they.
Who is this Almighty Angel who blows the seventh trumpet who has the authority of God himself?
Who comes and is clothed with the symbol of the Cloud?
Revelation 14:14
And I looked, and behold a white cloud, and upon the cloud one sat like unto the Son of man, having on his head a golden crown, and in his hand a sharp sickle.
The White Cloud is the symbol of the angelic hosts of heaven.
Revelation 1:7
Behold, he cometh with clouds; and every eye shall see him, and they also which pierced him: and all kindreds of the earth shall wail because of him. Even so, Amen.
So who is the Almighty Angel that is bestowed such great honour and glory as the one described above?
The Living Word Christ Jesus.
This Almighty Angel sounds the seventh trumpet and declares Time No Longer.
Who can declare Time No Longer except the authority be God himself.
The seventh trumpet sounded by the Living Word Christ Jesus calls it the end and at this point in time every human being is dead and all life in the sea and on the land is given up and those that had not been raised after the first death, they and Hell itself are thrown into the lake of fire, called the second death.
There is no pre or post trib when the seventh trumpet is sounded by the Lord, because it is over, the end!
1 Corinthians 15:24-27
Then cometh the end, when he shall have delivered up the kingdom to God, even the Father; when he shall have put down all rule and all authority and power. For he must reign, till he hath put all enemies under his feet. The last enemy that shall be destroyed is death. For he hath put all things under his feet. But when he saith all things are put under him, it is manifest that he is excepted, which did put all things under him.
The risen Lord when he sounds the seventh trumpet he would have put everything under his pillary feet. The last enemy that is death, is defeated because every human being is dead, either they have entered in through the first resurrection or have been exterminated in the lake of fire, the second death. Past this point at the sounding of the seventh trumpet death can not continue, that is why at this point death is completely defeated by being routed out. For obvious reasons there is no one left to die, game over, the end!