How can we be certain that Lucifer and satan are the same person?

Asked and answered.  I have been asking questions in groups for sometime now and I think that I would like to post some of the great answers I get.

How can we be certain that Lucifer and satan are the same person?

Lucifer is only mention in Isaiah 14

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!
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.
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;

Lucifer is never referred to directly as Satan.  We fill in the blanks of Satan with the scripture of Lucifer. Is this justified?

Best Answer posted by Jason Hacker

‎(Revelation 9:11) And they had a king over them, which is the angel of the bottomless pit, whose name in the Hebrew tongue is Abaddon (destroying angel), but in the Greek tongue hath his name Apollyon.

Ἀβαδδών
Abaddōn
ab-ad-dohn’
Of Hebrew origin [H11]; a destroying angel: – Abaddon.

אבדּון
‘ăbaddôn
ab-ad-done’
Intensively from H6; abstractly a perishing; concretely Hades: – destruction.

Abaddon is the destroying angel that will perish. The only one in the Bible that led a rebellion that destroyed the goodness in heaven was Lucifer. He is the king of those in the bottomless pit and has been sentenced to perish.

Also here we see that Lucifer was brought down to the sides of the pit in hell just as we know satan was: (Isaiah 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!

(Isaiah 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:

(Isaiah 14:14) I will ascend above the heights of the clouds; I will be like the most High.

(Isaiah 14:15) Yet thou shalt be brought down to hell, to the sides of the pit.

Here we see that Lucifer made the earth to tremble and shake kingdoms and we know satan does and will do that: (Isaiah 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;

We also know that this is Lucifer: (Ezekiel 28:14) Thou art the anointed cherub that covereth; and I have set thee so: thou wast upon the holy mountain of God; thou hast walked up and down in the midst of the stones of fire.

(Ezekiel 28:15) Thou wast perfect in thy ways from the day that thou wast created, till iniquity was found in thee.

(Ezekiel 28:16) By the multitude of thy merchandise they have filled the midst of thee with violence, and thou hast sinned: therefore I will cast thee as profane out of the mountain of God: and I will destroy thee, O covering cherub, from the midst of the stones of fire.

(Ezekiel 28:17) Thine heart was lifted up because of thy beauty, thou hast corrupted thy wisdom by reason of thy brightness: I will cast thee to the ground, I will lay thee before kings, that they may behold thee.

(Ezekiel 28:18) Thou hast defiled thy sanctuaries by the multitude of thine iniquities, by the iniquity of thy traffick; therefore will I bring forth a fire from the midst of thee, it shall devour thee, and I will bring thee to ashes upon the earth in the sight of all them that behold thee.

(Ezekiel 28:19) All they that know thee among the people shall be astonished at thee: thou shalt be a terror, and never shalt thou be any more.

We know that satan defiles sanctuaries. We know he was cast out of Heaven, etc…

And I know you have read this verse once or twice, but this one ties them together as the one who was cast out of Heaven after his rebellion: (Revelation 12:9) And the great dragon was cast out, that old serpent, called the Devil, and Satan, which deceiveth the whole world: he was cast out into the earth, and his angels were cast out with him.

Jason Hacker: Then of course we know that satan is sentenced to perish and therefore is the son of perdition and we know that Lucifer exalted himself above God. He wants to be God and to be worshipped, so here you go: (2 Thessalonians 2:3) 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;

(2 Thessalonians 2:4) 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.