In the Roman language Lucifer was the name given to the morning star Venus. The morning star appears in the sky just before dawn. In the Hebrew text the expression used to describe the Babylonian king before his death is Helal, son of Shahar, which can be translated as Day star, son of the Dawn. Jerome had mistranslated the Hebraic metaphor Day star, son of the Dawn, as Lucifer, and over the centuries a metamorphosis took place from the Latin in that of interpreting Lucifer into a fallen angel now named Satan. In the original Hebrew day star, son of the dawn is used, but not for that of Satan, but for the king of Babylon. Isaiah is using this metaphor for a bright light, though not the greatest light (Jesus) to illustrate the apparent power of the Babylonian king which then faded.
The name Satan comes from a Hebrew word sah-TAHN which means adversary as in signifying an enemy, and an accuser, father of lies.
Satan was created perfect in all his ways with beauty, wisdom and freewill. God placed him as the guardian or protector over the throne of God in heaven. He was entrusted with many possessions and found much favor in the Lord.
God created the earth and saw that it was good and he took Lucifer from Gods Holy Mountain and set him over the Garden of Eden as a covering cherub to watch over and enjoy all that was of God. As Lucifer was set in the garden iniquity was soon found in him as he defiled Gods sanctuary through pride in his own beauty and deceit as he wanted all that was of Gods here on earth to be his own as he tried to make his throne above the angels and be God.
Because iniquity was found in him God cast him and those angels who chose to follow him out of his holy mountain and cast them all down to earth to be trampled of all nations. The only reference in scripture that denotes there being one third of the angels falling with Satan is in Revelation 12:9.
(Ref: Read Ezekiel Chapter 28 Prince of Tyrus – another dual referent)
Revelation 12:4 And his tail drew the third part of the stars of heaven, and did cast them to the earth: and the dragon stood before the woman which was ready to be delivered, for to devour her child as soon as it was born.
Ezekiel 28:13 Thou hast been in Eden the garden of God; every precious stone was thy covering, the sardius, topaz, and the diamond, the beryl, the onyx, and the jasper, the sapphire, the emerald, and the carbuncle, and gold: the workmanship of thy tabrets and of thy pipes was prepared in thee in the day that thou wast created.
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.
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.
(Dual referent)
Satan was cast down to the earth and became the ruler of iniquity over it before the creation of man which is why he had the power and right to give the kingdoms of the world over to Christ. Satan corrupted the nations until there was no righteous person found except Noah. Even after Satan was cast down to the ground he still vowed that he would ascend back into heaven and take his place on the throne and be like the most high.
Jesus said
For I did not speak from Myself, but the Father Himself, having sent Me, gave Me a commandment, what I should say and what I should speak.
and therefor his words are Gods words
If I had not come and spoken to them, they would not have had sin; but now they have no excuse for their sin.
a question for you ... who did God come and speak to before sin was something known, seeing once it is known there is no excuse for it. but when not known there is