The day of the Lord is not figuraitve, Isaiah 13 and 14 are describing the day of the Lord.
The day of the LORD is not figurative,but it is when God ends this sin business on earth.
The whole purpose of God is to create people,and give them an allotted time on earth,and take the people that love Him to dwell with Him forever,and when that allotted time is up He will end this sin business on earth,for He cannot continue to allow people to keep sinning but must one day put an end to sin.
And that is the day of the LORD,which is also known as the battle of Armageddon when God fights the world,and defeats them.
God is love and loves all people,and will not give up on the world until they give up on Him,so He is giving the world 7 years to have their way,and cause all people who do not love Him to follow a kingdom that acknowledges no personal God,and when they do He will end this sin business on earth.
Satan is on a leash but soon he will be off his leash concerning the wicked,and will work among them that he could not do in the past,and deceive the wicked to rebel against God in which they will stop the preaching of the Gospel in the world,and religion is about evolution,and people can still evolve by the power of nature,as they want peace in the world.
Zec 14:1 Behold, the day of the LORD cometh, and thy spoil shall be divided in the midst of thee.
Zec 14:2 For I will gather all nations against Jerusalem to battle; and the city shall be taken, and the houses rifled, and the women ravished; and half of the city shall go forth into captivity, and the residue of the people shall not be cut off from the city.
Zec 14:3 Then shall the LORD go forth, and fight against those nations, as when he fought in the day of battle.
The day of the LORD,God fighting the world,which includes all nations as they are in rebellion against God,so they attack Jerusalem.
Isa 2:12 For the day of the LORD of hosts shall be upon every one that is proud and lofty, and upon every one that is lifted up; and he shall be brought low.
Isa 13:4 The noise of a multitude in the mountains, like as of a great people; a tumultuous noise of the kingdoms of nations gathered together: the LORD of hosts mustereth the host of the battle.
Isa 13:5 They come from a far country, from the end of heaven, even the LORD, and the weapons of his indignation, to destroy the whole land.
Isa 13:6 Howl ye; for the day of the LORD is at hand; it shall come as a destruction from the Almighty.
Isa 13:7 Therefore shall all hands be faint, and every man's heart shall melt:
Isa 13:8 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.
Isa 13:9 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.
Isa 13:10 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.
Isa 13:11 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.
The day of the LORD,God fighting the world to end this sin business on earth.
Eze 30:1 The word of the LORD came again unto me, saying,
Eze 30:2 Son of man, prophesy and say, Thus saith the Lord GOD; Howl ye, Woe worth the day!
Eze 30:3 For the day is near, even the day of the LORD is near, a cloudy day; it shall be the time of the heathen.
Time to put the heathen of the world down,and cause them to cease their wicked ways.
Joe 3:1 For, behold, in those days, and in that time, when I shall bring again the captivity of Judah and Jerusalem,
Joe 3:2 I will also gather all nations, and will bring them down into the valley of Jehoshaphat, and will plead with them there for my people and for my heritage Israel, whom they have scattered among the nations, and parted my land.
Joe 3:9 Proclaim ye this among the Gentiles; Prepare war, wake up the mighty men, let all the men of war draw near; let them come up:
Joe 3:10 Beat your plowshares into swords, and your pruninghooks into spears: let the weak say, I am strong.
Joe 3:11 Assemble yourselves, and come, all ye heathen, and gather yourselves together round about: thither cause thy mighty ones to come down, O LORD.
Joe 3:12 Let the heathen be wakened, and come up to the valley of Jehoshaphat: for there will I sit to judge all the heathen round about.
Joe 3:13 Put ye in the sickle, for the harvest is ripe: come, get you down; for the press is full, the fats overflow; for their wickedness is great.
Joe 3:14 Multitudes, multitudes in the valley of decision: for the day of the LORD is near in the valley of decision.
Joe 3:15 The sun and the moon shall be darkened, and the stars shall withdraw their shining.
Joe 3:16 The LORD also shall roar out of Zion, and utter his voice from Jerusalem; and the heavens and the earth shall shake: but the LORD will be the hope of his people, and the strength of the children of Israel.
The day of the LORD,God will fight the world.
As far as Lucifer being king Nebuchadnezzar it is not true.
Isa 14:12 How art thou fallen from heaven, O Lucifer, son of the morning! how art thou cut down to the ground, which didst weaken the nations!
King Nebuchadnezzar did not fall from heaven,and he did not have that much power to weaken the nations,for he did not control that much back at his time.
Isa 14:13 For thou hast said in thine heart, I will ascend into heaven, I will exalt my throne above the stars of God: I will sit also upon the mount of the congregation, in the sides of the north:
Isa 14:14 I will ascend above the heights of the clouds; I will be like the most High.
That is a mighty claim from a mere mortal to think he can ascend above the heights of the clouds,and be like the most high.
Isa 14:15 Yet thou shalt be brought down to hell, to the sides of the pit.
Isa 14:16 They that see thee shall narrowly look upon thee, and consider thee, saying, Is this the man that made the earth to tremble, that did shake kingdoms;
Isa 14:17 That made the world as a wilderness, and destroyed the cities thereof; that opened not the house of his prisoners?
It is Satan who does not let loose the prisoners that are wicked and are lost.
Also look at king Nebuchadnezzar's belief while he was king.
Dan 1:18 Now at the end of the days that the king had said he should bring them in, then the prince of the eunuchs brought them in before Nebuchadnezzar.
Dan 1:19 And the king communed with them; and among them all was found none like Daniel, Hananiah, Mishael, and Azariah: therefore stood they before the king.
Dan 1:20 And in all matters of wisdom and understanding, that the king enquired of them, he found them ten times better than all the magicians and astrologers that were in all his realm.
Dan 2:47 The king answered unto Daniel, and said, Of a truth it is, that your God is a God of gods, and a Lord of kings, and a revealer of secrets, seeing thou couldest reveal this secret.
Dan 2:48 Then the king made Daniel a great man, and gave him many great gifts, and made him ruler over the whole province of Babylon, and chief of the governors over all the wise men of Babylon.
Dan 2:49 Then Daniel requested of the king, and he set Shadrach, Meshach, and Abednego, over the affairs of the province of Babylon: but Daniel sat in the gate of the king.
Dan 3:28 Then Nebuchadnezzar spake, and said, Blessed be the God of Shadrach, Meshach, and Abednego, who hath sent his angel, and delivered his servants that trusted in him, and have changed the king's word, and yielded their bodies, that they might not serve nor worship any god, except their own God.
Dan 3:29 Therefore I make a decree, That every people, nation, and language, which speak any thing amiss against the God of Shadrach, Meshach, and Abednego, shall be cut in pieces, and their houses shall be made a dunghill: because there is no other God that can deliver after this sort.
Dan 3:30 Then the king promoted Shadrach, Meshach, and Abednego, in the province of Babylon.
Dan 4:34 And at the end of the days I Nebuchadnezzar lifted up mine eyes unto heaven, and mine understanding returned unto me, and I blessed the most High, and I praised and honoured him that liveth for ever, whose dominion is an everlasting dominion, and his kingdom is from generation to generation:
Dan 4:35 And all the inhabitants of the earth are reputed as nothing: and he doeth according to his will in the army of heaven, and among the inhabitants of the earth: and none can stay his hand, or say unto him, What doest thou?
Dan 4:36 At the same time my reason returned unto me; and for the glory of my kingdom, mine honour and brightness returned unto me; and my counsellors and my lords sought unto me; and I was established in my kingdom, and excellent majesty was added unto me.
Dan 4:37 Now I Nebuchadnezzar praise and extol and honour the King of heaven, all whose works are truth, and his ways judgment: and those that walk in pride he is able to abase.
King Nebuchadnezzar was not exalting himself above the God of Israel,but he proclaimed throughout his kingdom to acknowledge the God of Israel,and if anybody says anything amiss against Him shall be cut in pieces,and their house made a dunghill,for he said the God of Israel is the greatest God,and praised and honored him.
So he does not fit the pattern of Lucifer,and king Nebuchadnezzar was the greatest king,and the kingdom of Babylon flourished the most under his rule,which the Bible says they rode on eagle's wings,but his son blew it and the kingdom was stripped from Babylon,and then they were known as the kingdom of man.
The truth is when God gives the world their way for 7 years,and allows Satan to deceive all people that do not love Him,Satan will inhabit a human body,the New Age Christ,which God warns us of the new age movement that will pave the way to the rebellion against God,and the biggest prophet of that movement that wrote the most about it,Alice Bailey,interprets the Bible according to the occult and says Lucifer did not fall in to sin and disgrace,but he descended from the planet Venus to bring the principle of mind to the then animal-man,and when the nations come together as one to try to achieve peace on earth then Lucifer will help them evolve through the power of nature to be greater than what they are,which the New Age Christ will be of the occult,witchcraft,spiritual evolution through nature,and does not acknowledge any personal God,but honors the God of forces,or the power of nature as his higher power.
Babylon has not fallen yet,and she represents the kingdom of man,for as soon as king Nebuchadnezzar's son blew it by not honoring the God of Israel even though he knew what his father believed the kingdom was stripped from them,and the king's son did not try to exalt himself above the God of Israel,for he believed in other gods,and praised them,where Lucifer in the future will not praise any god,and Babylon will fall in the future when Lucifer deceives the world to rebel against God by way of believing in spiritual evolution through nature,and no personal God,and when they rebel against God then He will end this sin business on earth.
Babylon has not fallen yet.
The king had a dream and Daniel interpreted it,which was a vision of a statue of a man,Babylon,Medo-Persia,Greece,and the Roman Empire,and the future ten horn kingdom,and none of those kingdoms fall until Jesus smites the feet of the statue then all those kingdoms fall.
Daniel had a dream of the same kingdoms,and said the first three kingdoms had their physical dominion taken away,but their lives were prolonged for a time and season,which means their ways are still on earth,and they do not fall until Jesus puts down the kingdom that the New Age Christ rules.
Babylon represents human religion,and the kingdom of man.
Medo-Persia represents physical cruelty.
Greece represents human wisdom.
The Roman Empire represents pushing for territory,world domination,and will branch in to ten horn,the world split in to ten sections with a leader in each section,which all nations will come together and say Peace and safety and the rebellion will start,which the Bible says they will devour the earth,tread it down,and break it in pieces,and the ten horns hand their power over to the New Age Christ,and he gets control of the world.
God calls it the daughter of Babylon,and when He goes against them He will not meet them as a man,which means the first time God came to deal with people's sin problem He came as a humble man and offered salvation,but the second time He comes back to deal with people's sin problem He will come back as God and punish the world for their sins and iniquities against Him,and end this sin business on earth.
So Isaiah 14 is not about the king of Babylon of the past,but of the future,and Babylon has not fallen yet,as God allows the world 7 years to have their way,and cause all people that do not love Him to follow the New Age Christ,and when they do then God can end this sin business on earth,and the new age movement looks at Lucifer as the helper of this world,and they believe he has harnessed the power of nature,and will share that power with all who follow him,but it is rebellion against God as they do not acknowledge a personal God,but it is all about people with no authority above them,which they say I am,and there is none beside me,and say they sit as a Queen,and shall never be put down,but God said they will go down for strong is the Lord that executes judgment against her.
1Th 5:1 But of the times and the seasons, brethren, ye have no need that I write unto you.
1Th 5:2 For yourselves know perfectly that the day of the Lord so cometh as a thief in the night.
1Th 5:3 For when they shall say, Peace and safety; then sudden destruction cometh upon them, as travail upon a woman with child; and they shall not escape.
1Th 5:4 But ye, brethren, are not in darkness, that that day should overtake you as a thief.
1Th 5:5 Ye are all the children of light, and the children of the day: we are not of the night, nor of darkness.
When the nations come together in the future as they try to establish peace on earth that is when the rebellion will start,but the saints will know it is not of God and not follow them,and God said multitudes in the valley of decision,for the day of the LORD is near in the valley of decision,for the world has a decision to make,stay with God,come to God,or follow the world.