Per Apostles Paul and Peter, the day of The LORD is timed with the day of destruction of our enemies.
Isa 13:6-13
6 Howl ye; for the day of the LORD is at hand; it shall come as a destruction from the Almighty.
7 Therefore shall all hands be faint, and every man's heart shall melt:
8 And they shall be afraid: pangs and sorrows shall take hold of them; they shall be in pain as a woman that travaileth: they shall be amazed one at another; their faces shall be as flames.
9 Behold, the day of the LORD cometh, cruel both with wrath and fierce anger, to lay the land desolate: and He shall destroy the sinners thereof out of it.
10 For the stars of heaven and the constellations thereof shall not give their light: the sun shall be darkened in His going forth, and the moon shall not cause her light to shine.
11 And I will punish the world for their evil, and the wicked for their iniquity; and I will cause the arrogancy of the proud to cease, and will lay low the haughtiness of the terrible.
12 I will make a man more precious than fine gold; even a man than the golden wedge of Ophir.
13 Therefore I will shake the heavens, and the earth shall remove out of her place, in the wrath of the LORD of hosts, and in the day of His fierce anger.
(KJV)
Mal 4:1-3
1 For, behold, the day cometh, that shall burn as an oven; and all the proud, yea, and all that do wickedly, shall be stubble: and the day that cometh shall burn them up, saith the LORD of hosts, that it shall leave them neither root nor branch.
2 But unto you that fear My name shall the Sun of righteousness arise with healing in his wings; and ye shall go forth, and grow up as calves of the stall.
3 And ye shall tread down the wicked; for they shall be ashes under the soles of your feet in the day that I shall do this, saith the LORD of hosts.
(KJV)
God even said His enemies will be like ashes under our feet in the day that He does that. We would have to still be here on earth through that for the wicked being as ashes under our feet on that day.
Something many forget about is that our GOD is a consuming fire (Heb.12). His Fire is not exactly like our concept of fire on this earth, which it burns everything in its path.
II Ki 1:8-12
8 And they answered him, He was an hairy man, and girt with a girdle of leather about his loins. And he said, It is Elijah the Tishbite.
9 Then the king sent unto him a captain of fifty with his fifty. And he went up to him: and, behold, he sat on the top of an hill. And he spake unto him, "Thou man of God, the king hath said, 'Come down.' "
10 And Elijah answered and said to the captain of fifty, "If I be a man of God, then let fire come down from heaven, and consume thee and thy fifty." And there came down fire from heaven, and consumed him and his fifty.
11 Again also he sent unto him another captain of fifty with his fifty. And he answered and said unto him, "O man of God, thus hath the king said, 'Come down quickly.' "
12 And Elijah answered and said unto them, "If I be a man of God, let fire come down from heaven, and consume thee and thy fifty." And the fire of God came down from heaven, and consumed him and his fifty.
(KJV)
How is it that Elijah could be standing right in front of those fifty, two times even, with God bringing fire down from Heaven to burn them up, and it not touching Elijah one bit?
Even in 1 Kings 18 when Elijah called upon God to burn the sacrifice up, only the sacrifice, the wood, the stones, and the water Elijah poured around it in a trench were affected.
Our Heavenly Father can aim His wrath upon the wicked without touching His servants. His Fire is different from man's concept and understanding of fire.
That's why the false prophets love to taunt God's people who have not understood this from His Word about the day of His wrath. They've been busy trying to instill fear into the hearts of God's people in Christ Jesus, trying to make us believe that day is going to be all out nuclear holocaust and fire that man creates from it. Those are doctrines from Christ's enemies who try to scare us into wanting to flee off this earth on that day.
Our Lord showed specifically in Zech.14 about the plague of fire on that day and who it will be upon...
Zech 14:12
12 And this shall be the plague wherewith the LORD will smite all the people that have fought against Jerusalem; Their flesh shall consume away while they stand upon their feet, and their eyes shall consume away in their holes, and their tongue shall consume away in their mouth.
(KJV)
Zech 14:15-17
15 And so shall be the plague of the horse, of the mule, of the camel, and of the ass, and of all the beasts that shall be in these tents, as this plague.
16 And it shall come to pass, that every one that is left of all the nations which came against Jerusalem shall even go up from year to year to worship the King, the LORD of hosts, and to keep the feast of tabernacles.
17 And it shall be, that whoso will not come up of all the families of the earth unto Jerusalem to worship the King, the LORD of hosts, even upon them shall be no rain.
(KJV)
Christ's saints still on earth that day will be changed (1 Cor.15), but His enemies only will experience that plague of His wrath. And He points that plague being specifically upon a PORTION of the nations that come upon Jerusalem on that last day, for even some of those nations will be spared as shown above. We are not going anywhere until that's over, because in Zech.14:1-8 our LORD shows that great destruction in the area near Jerusalem happens first, then a great valley is formed by Christ's feet touching down there, and then we flee there to be with Christ, in that order. This is why our Lord Jesus said in Luke 21:20-21 for His servants in Judea at that time to flee to the mountains, and for those in the countries to not enter therein. It's the day of His vengeance upon His enemies, not His servants who wait on His coming.
But the wicked hosts, they indeed have something to fear today with that coming wrath.