Wycliffes_Shillelagh - I realize this comment is coming years later than your original post, but a short answer to your question would be...
YES, the devil is one of the cherubim guarding Eden's eastern entrance, and YES, Satan the cherub is also the "prince of Tyre" in Ezekiel 28:12. The LXX shows Ezekiel 28:12 as the "PRINCE of Tyre", (archonta) - NOT the "KING of Tyre", as in other translations. The first "prince of Tyre" (archonti) in Ezekiel 28:2 is a different individual, because the prince in Ezekiel 28:2 is described as a MAN (Ez. 28:2,9), and the second prince of Ezekiel 28:12 is described as the ANOINTED CHERUB (Ez. 28:14). Two different princes entirely being discussed in those two sections.
You haven't asked for a longer answer to your question W_S, but in spite of that, you may still be interested in some of the following musings on this subject...
If Satan actually was set as one of the cherubim guarding Eden's entrance, why would God want to position this evil angel, an enemy of His, so near to the Tree of Life? The answer to that might be found in the old proverb "Keep your friends close, and your enemies closer". God originated this idea long before in the Garden of Eden by having Satan be one of the two cherubim guarding Eden's entrance. The other cherub beside him was Michael, the archangel (Jude 9), also "*ONE OF* THE CHIEF PRINCES", according to Daniel 10:13.
Satan in his original state before the fall had been created as the other chief prince equal in power to Michael's position in the "divine council". We can see examples of Michael and Satan squaring off with each other in scripture, as if they are equally ranked in power and might, such as Revelation 12:7 with the war in heaven, when Michael and the Dragon fought each other's forces. We also have Michael in Jude 9 contending with the devil about the body of Moses.
Although Michael, the chief prince / archangel was loyal to God and Satan was not, they both had their own different motives that made them guard the entrance to the Garden with equal intensity. Satan did not want any humans to gain immortality in their wicked, fallen condition. If they had, they would have outranked Satan, since he was destined to be destroyed, and He knew it, ever since God promised this victory over Satan to Eve.
Michael desired to protect God's purposes for mankind's eternal life through Christ's sacrifice for sin, instead of mankind grabbing immortality for themselves without a righteous mediator. For the eventual good of man, the fruit of the Tree of Life could not be eaten yet until they were made righteous FIRST. THEN they could eat of the Tree, and eternal existence in a righteous state would yield a blessing, without producing the curse of eternal existence in a wicked state.
Phoebe's comment about this in reply #5, written in the margin of her Bible, was on the right track about Satan being one of the cherubs guarding Eden's entrance. Canuck's comment was also correct about the TWO cherubim figures on top of the ark's mercy seat that represented the TWO actual cherubim God had originally created in the angelic hierarchy; (which two cherubim were Michael and the other chief prince who would become Satan).
It is easier to understand the identity of the "prince of Tyre" in Ezekiel 28:12 if one can see the connection with the "divine council" of angels that God created and spoke about in all of Psalms 82 - the "assembly of gods" in Ps. 82:1 (LXX). Those members of God's divine council - "the gods" that fell - were to receive God's judgment (Ps. 82:1 & 7), at which time they would "die *LIKE* men, and fall like one of the PRINCES" (like the fall of Satan, one of the chief princes, who also happened to be that PRINCE of Tyre in Ezekiel 28:12).
Yes, Psalms 82:7 says it is possible for angels to die, similar to the death of mankind, because angels actually were created with their own type of flesh forms - the "celestial bodies" found in I Cor. 15:39-40. This "celestial body" form was never intended to merge with the other "terrestrial" flesh-and-blood type forms of the daughters of men. (This explains how the existence of UNCLEAN SPIRITS came to be, when a righteous angel's type of "celestial body" chose to unite with the "terrestrial body" forms of the unrighteous daughters of men in their fallen state. The hybrid children produced by these unions became the giants of Genesis 6:1-3, who were born with an "unclean spirit". It was the same principle at work that Job 14:4 spoke about: "Who can bring a clean thing out of an unclean? Not one." A righteous angel who chose not to keep their first estate and "left their own habitation" in heaven (Jude 6) to marry an unrighteous daughter of fallen mankind could only bring forth progeny that were also unclean by association. And in becoming "one flesh" with their human wife who was in a fallen state of unrighteousness, the righteous angel also became unclean as well: in other words, they became a "fallen" angel" who was righteous no longer: a devil.
But this digresses from your original point, W_S, which was to ask if the "prince of Tyre" in Ezekiel 28 was also Satan. He was. This "prince of Tyre" in Ezekiel 28:12 was specifically described as being in Eden, the garden of God (as we do find Satan there tempting Eve), and was identified as being "the anointed cherub that covereth". This "covering" action of the cherubim in heaven was represented by the two cherubs on top of the ark of the covenant, who "covered" the mercy seat (Ex. 25:18-20). Satan, as he was originally created, was one of these two "covering" cherubs in heaven.
What we see in Genesis 3 is not only the fall of mankind when they ate the forbidden fruit, but also the fall of Satan occurring there as well. Whirlwind's comment #1 that Satan was ALREADY in his fallen state when he approached Eve is not correct; Satan's fall occurred at the same moment that Adam and Eve fell into sin. The very first of the 10 commandments is "Thou shalt have no other gods before me". When Adam and Eve obeyed the serpent's urging to eat the fruit of the Tree of Knowledge of Good and Evil, they essentially took their allegiance and homage from God who had created them, and gave that homage and obedience to Satan instead: their WORSHIP was given to another. Just as we are told in Romans 6:16, "Know ye not, that to whom ye yield yourselves servants to obey, his servants ye are to whom ye obey; whether of sin unto death, or of obedience unto righteousness?" In other words, fallen man's disobedient action was responsible for changing the "anointed cherub" into the devil by their one act of obedience to him. We can't blame God for creating that evil creature, the devil. Adam and Eve did it themselves by a single act of their freedom to choose.
In my recent post on the origin of devils and the divine council, I made the point that any originally-righteous angels of the divine council were transformed into a devil if that angel was tempted to receive human worship offered to them, and eventually DID ACCEPT that human worship. What we are looking at in Genesis 3 is just the first one of those angelic transformations from a formerly-righteous cherub into a fallen cherub.
The "prince of Tyre's" description in Ezekiel 28:12 gives a brief biography of Satan's past glorious condition as an anointed cherub, and his simultaneous fall along with Adam and Eve, when "iniquity was found" in him. In addition, not only did Satan the "prince of Tyre" fall from his righteous state in Eden, but Ezekiel 28:16 predicts that he will be cast out of the mountain of God, just as Revelation 12:7-10 said that the Dragon / Satan was cast out of heaven with his angels, once Christ the Lamb's blood had been presented in heaven. Also, the location for his eventual destruction is ON THE EARTH - not in heaven - since this cast-out prince is also called "the prince of THIS WORLD" in John 12:31.
Ezekiel 28:17-19 described how God would finally destroy Satan, the anointed cherub, the "prince of Tyre".
verse #17 - "...I will cast thee to the ground, I will lay thee before kings that they may behold thee." (I believe this is Satan the Dragon being "cast out of heaven to the earth" after Christ's ascension - John 12:31 compared with Revelation 12:7-13. Eventually in the AD 70 era, Satan would be imprisoned with the "kings of the earth", which were the collection of high priests present in the city of Jerusalem during the AD 66-70 conflict. This joint imprisonment of the "kings of the earth" and the "host of the high ones that are on high" was spoken about in Isaiah 24:21-23 compared to Revelation 18:2, when every unclean spirit was to be imprisoned within Babylon's / Jerusalem's walls.)
verse #18 - "...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 of them that behold thee." (As a righteous cherub, Satan once walked up and down among the stones of fire in heaven without harm, but in his fallen state, God's fire would devour him, and his "celestial" flesh form would turn to ashes. These ashes would then be trodden underfoot on "the great and dreadful Day of the Lord", as Malachi foretold in Mal. 4:3,5.)
verse #19 - "All they that know thee among the people shall be astonished at thee" ("the people" term is usually OT ethnic Israel being spoken about). "Thou shalt be a terror, AND NEVER SHALT THOU *BE* ANYMORE." (This is Satan's final demise. In Revelation 20:10, Satan was cast into the Lake of Fire / the "furnace of fire in Jerusalem" where the "kings of the earth" / the high priests were also already imprisoned. Because these "kings" / high priests were part of the Scarlet Beast of Revelation 17, these "kings" / high priests had been thrown "ALIVE" into the Lake of Fire, as Revelation 19:20 tells us (the Lake of Fire being the "furnace of fire" in Jerusalem in the AD 70 era).
This death of Satan, the "prince of Tyre" is even more definitely expressed in the LXX version of Ezekiel 28:19 than in the KJV. In this version of the phrase, it says "...thou art gone to destruction, and THOU SHALT NOT EXIST ANYMORE." We have this same idea of Satan, his demons, and the high priests all being imprisoned together in Jerusalem in Isaiah 24:21-23. It says there that "After many days" of their imprisonment in Jerusalem, (which would last from AD 66-70), these would all be "found wanting" (as the KJV margin renders this), which means they would all be GONE. Since these "kings of the earth" / high priests were to be imprisoned together in Jerusalem along with the demonic "host of the high ones that are on high" (the host of the evil divine council leaders) when they would all be "found wanting" or GONE at the close of this period; and since THERE HAVEN'T BEEN ANY HIGH PRIESTS "KINGS OF THE EARTH" in Jerusalem since the endof AD 70, then that tells us there haven't been any of the punished demonic "host of the high ones" around since then either.
W_S, there's one other thing. Remember, we can't confuse the "prince of Tyre" in Ezekiel 28:2 (who is called a MAN in Ezekiel 28:2, 9-10 who would "die the death of the uncircumcised by the hand of strangers") with the OTHER "prince of Tyre" in Ezekiel 28:12, (who is Satan, destined to be devoured by fire and reduced to ashes). The one "prince of Tyre" was the egotistical HUMAN prince of the city of Tyre, and the other prince was the member of the "divine council" (in this case, Satan) who was operating in that city, accepting their idolatrous worship and "defiling thy sanctuaries in the city of Tyre (Ez. 28:18) by corrupted human worship in those sanctuaries.
The question would be, "Why was it so significant that Tyre in particular be the city where Satan used his manifold evil skills to corrupt that one city of Tyre above all others?" Part of the answer to that question was your observation, W_S, that Tyre was the central hub of Canaanite trade on the coast, both the suburbs of Tyre on the mainland and the island city of Tyre just off shore. The list of nations and cities trading at Tyre is quite an exensive one in Ezekiel 27. Satan would have had ample opportunity as the divine council "prince of Tyre" to corrupt many nations by their trading and associations with Tyre and its idolatrous worship.
Moreover, one of Tyre's kings, Hiram, was once a great "lover of David" the king (I Kings 5:1), and did his utmost to help David's son Solomon with labor and materials for the construction of the temple. As I have written elsewhere on this forum, when the foundation stone for Solomon's temple was laid, this started the millennium period of Rev. 20. It lasted from 967 BC until AD 33 and the First Resurrection, when Christ became the foundation stone of the True Temple made without hands. During this literal 1,000-year millennium of a physical temple worship system, the level of deception Satan could use over the nations was restricted by the splendor of Solomon's kingdom spreading the knowledge of Israel's God throughout the nations, and also by the ministry of the OT prophets spreading the word of God by their spoken or written words.
Under Hiram the king, it was Tyre's assistance of King Solomon that helped jump-start those millennium restrictions placed on Satan's deceptive activity. Satan would have resented Tyre's assistance of Solomon. Why else would he desire to corrupt the city of Tyre totally except in retaliation for Hiram helping Solomon build the temple which began the thousand years of chained restriction on his own deception of the nations? If he could corrupt the city of Tyre totally by his influence as the divine council "prince of Tyre", he must have thought his goal of deceiving the nations could be back on track again.
The good relations between Israel in Solomon's days and the city of Tyre under Hiram's rule did not last long. It deteriorated once Jezebel, the idol-worshipping princess from Tyre, married Ahab, king of the Northern kingdom of Israel. Satan's influence as the "prince of Tyre" would extend through Jezebel's Tyrian bckground of idolatry to corrupt all the Northern kingdom of Israel, which had not a single righteous ruler in its history.
In addition, there was another reason Satan worked to exert his influence over Tyre. It was because the infamous Tyrian shekel minted in the city of Tyre would later on be used to corrupt worship in the temple of Jerusalem. The high priests started requiring this coin, with its pagan image of the demi-god Herakles, to be the only acceptable temple currency for payment of the annual Temple Tax and all purchases and sales of sacrificial animals. These Tyrian shekel coins, (the mark imposed by the Judean Land Beast in Revelation 13 on all those in the land of Israel), were originally minted in the city of Tyre where this "chief prince", Satan the corrupted cherub and archangel, had exercised his considerable influence for evil, as much as he was permitted by God.
Just to give a synopsis, we can take away quite a few enlightening facts from a study of one of the cherubs in Eden being equal to the Ezekiel 28:12 "prince of Tyre".
#1) - Satan and Michael, even with opposite motives, were both set up as the cherubim to guard the way to the Tree of Life in the Garden of Eden.
#2) - As an originally-righteous "chief prince" of the divine council, Satan fell into his sinful condition when Adam and Eve obeyed him in the Garden of Eden instead of obeying God. This turned him into the devil, when Adam and Eve "worshipped and served the CREATURE more than the CREATOR" and essentially made an idol of him by their act of disobedience.
#3) - As part of the divine council, Satan, the "prince of Tyre" exerted his evil influence on the human "prince of Tyre" in Ezekiel 28:2 and on the city itself to produce long-term corruption of Tyre and the nations which associated and traded with this wealthy city.
#4) - Satan, as the "prince of Tyre", had a celestial body form which would be destroyed by a devouring fire that would turn him into ashes underfoot in the Day of the Lord's judgment, never to exist anymore after that. Satan was a being capable of being completely destroyed on earth.
#5) - This destruction of Satan the "chief prince" and all the evil divine council "host of the high ones that are on high" would occur at the same time when the high priesthood "kings of the earth" were imprisoned together with them in Jerusalem. After that time, they would all be "found wanting", or GONE from the earth. Since all these imprisoned ones were to be destroyed together, then Satan and his fallen angels have been destroyed already, since the high priesthood "kings of the earth" in Israel came to an end by the close of the AD 70 era.
Okay, Wycliffes_Shillelagh, I'm sure all this above is probably more than you were wanting to wade through all at once. If you have time to skim through it and happen to notice any glaring inconsistencies, perhaps you could let me know where they are. Just thinking out loud on this subject...