18Behold, to morrow about this time I will cause it to rain a very grievous hail, such as hath not been in Egypt since the foundation thereof even until now.
19Send therefore now, and gather thy cattle, and all that thou hast in the field; for upon every man and beast which shall be found in the field, and shall not be brought home, the hail shall come down upon them, and they shall die.
20He that feared the word of the LORD among the servants of Pharaoh made his servants and his cattle flee into the houses:
21And he that regarded not the word of the LORD left his servants and his cattle in the field.
22And the LORD said unto Moses, Stretch forth thine hand toward heaven, that there may be hail in all the land of Egypt, upon man, and upon beast, and upon every herb of the field, throughout the land of Egypt.
23And Moses stretched forth his rod toward heaven: and the LORD sent thunder and hail, and the fire ran along upon the ground; and the LORD rained hail upon the land of Egypt.
24So there was hail, and fire mingled with the hail, very grievous, such as there was none like it in all the land of Egypt since it became a nation.
25And the hail smote throughout all the land of Egypt all that was in the field, both man and beast; and the hail smote every herb of the field, and brake every tree of the field.
Revelation 16: The last plagues IN ORDER. Compare with Revelation 8.
1And I heard a great voice out of the temple saying to the seven angels, Go your ways, and pour out the vials of the wrath of God upon the earth.
2And the first went, and poured out his vial upon the earth; and there fell a noisome and grievous sore upon the men which had the mark of the beast, and upon them which worshipped his image.
3And the second angel poured out his vial upon the sea; and it became as the blood of a dead man: and every living soul died in the sea.
4And the third angel poured out his vial upon the rivers and fountains of waters; and they became blood.
5And I heard the angel of the waters say, Thou art righteous, O Lord, which art, and wast, and shalt be, because thou hast judged thus.
6For they have shed the blood of saints and prophets, and thou hast given them blood to drink; for they are worthy.
7And I heard another out of the altar say, Even so, Lord God Almighty, true and righteous are thy judgments.
8And the fourth angel poured out his vial upon the sun; and power was given unto him to scorch men with fire.
9And men were scorched with great heat, and blasphemed the name of God, which hath power over these plagues: and they repented not to give him glory.
10And the fifth angel poured out his vial upon the seat of the beast; and his kingdom was full of darkness; and they gnawed their tongues for pain,
11And blasphemed the God of heaven because of their pains and their sores, and repented not of their deeds.
12And the sixth angel poured out his vial upon the great river Euphrates; and the water thereof was dried up, that the way of the kings of the east might be prepared.
13And I saw three unclean spirits like frogs come out of the mouth of the dragon, and out of the mouth of the beast, and out of the mouth of the false prophet.
14For they are the spirits of devils, working miracles, which go forth unto the kings of the earth and of the whole world, to gather them to the battle of that great day of God Almighty.
15Behold, I come as a thief. Blessed is he that watcheth, and keepeth his garments, lest he walk naked, and they see his shame.
16And he gathered them together into a place called in the Hebrew tongue Armageddon.
17And the seventh angel poured out his vial into the air; and there came a great voice out of the temple of heaven, from the throne, saying, It is done.
18And there were voices, and thunders, and lightnings; and there was a great earthquake, such as was not since men were upon the earth, so mighty an earthquake, and so great.
19And the great city was divided into three parts, and the cities of the nations fell: and great Babylon came in remembrance before God, to give unto her the cup of the wine of the fierceness of his wrath.
20And every island fled away, and the mountains were not found.
21And there fell upon men a great hail out of heaven, every stone about the weight of a talent: and men blasphemed God because of the plague of the hail; for the plague thereof was exceeding great.
Hail is the last plague, and happens just before the return of Jesus Christ. Those with the seal of God are protected. Many of those who are not (have the MOTB) will die from the plagues. Those left after the plagues who do not have the seal of God will be destroyed from the brightness of Christ’s return. Those who have the seal of God will be gathered up by angels to meet Christ in the air and be with Him forever.
Maybe you don’t understand Revelation 8?