There is only one place in scripture we find the name “Lucifer”…Isaiah 14:12-18 and it calls him a man. Satan has not been a man, yet but will as the Antichrist, the man of sin and son of perdition.

How art thou fallen from heaven,, O Lucifer, son of the morning [son of the dawn]! how art thou cut down to the ground, which didst weaken the nations! 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: I will ascend above the heights of the clouds; I will be like the most High. Yet thou shalt be brought down to hell, to the sides of the pit. 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; That made the world as a wilderness, and destroyed the cities thereof; that opened not the house of his prisoners?

{It is clear here that Lucifer is a “man” that made the earth to tremble.

Now we have been told this is the past but I have to disagree with this cause Satan has never been a man in the past. Satan at this time is still the accuser of the brethren before God day and night until he is cast out of heaven. But if we look towards the future we see that Satan is cast out of heaven by Michael the archangel (Rev. 12:1-10) to the earth where he will become the man of sin, son of perdition (the Antichrist), set himself as God and pour out his great wrath aka Great Tribulation (Rev. 12:12).

Dan 7:25 And he shall speak great words against the most High, and shall wear out the saints of the most High, and think to change times and laws: and they shall be given into his hand until a time and times and the dividing of time.

2Th 2:3-4 Let no man deceive you by any means: for that day shall not come, except there come a falling away first, and that man of sin be revealed, the son of perdition; Who opposeth and exalteth himself above all that is called God, or that is worshipped; so that he as God sitteth in the temple of God, shewing himself that he is God.