"SERAPHIM,"
"CHERUBIM,"
"ANGELS" (Good and Bad),
"NEPHILIM" (Part human, part Angel).
"Principalities," "Powers," "Age Rulers of Darkness," "Wicked Spirits," (Eph. 6:12), "Thrones," "Dominions," (Col. 1:16), "Fallen Angels," (II Peter 2:4), "Spirits in Prison," (I Peter 3:18-20), "Demons," "Seducing Spirits," (I Timothy 4:1).
The "SERAPHIM" have three pair of wings. They are the attendants of the "Lord of Hosts" and call attention to His holiness. Isa. 6:1-8.
1. The front face that of a "Man,"
2. The right side that of a "Lion,"
3. The left side that of an "Ox," (calf),
4. and the back that of an "Eagle."
They also have the "Hands of a Man" under their wings on each of their four sides. They are the Guardians of the Throne of God.
The "Four Beasts" or "Living Creatures" of Rev. 4:6-8, differ from the "Living Creatures" of Ezekiel, in that each Beast instead of having four faces has but one. The first beast having the face of a "Lion," the second that of a "Calf," the third that of a "Man," and the fourth that of a "Flying Eagle," and each "Beast" has "Six Wings" and "Eyes before and behind." The mention of a "Rainbow" by both Ezekiel and John (Ez. 1:28; Rev. 4:3) identifies the two visions as relating to the Throne of God.
The "SERAPHIM," "CHERUBIM," "ANGELS," and all other "HEAVENLY BEINGS" are created beings. They did not exist from all eternity. (Col. 1:16).
The "ANGELS" are "innumberable in number." Heb. 12:22. They are "Mighty in power" but not Almighty. 2 Thess. 1:7. They excel in strength. One angel destroyed 185,000 of the Assyrian army in a night. An angel rolled away the stone from the Tomb of Christ, and one angel shall bind Satan and cast him into the "Bottomless Pit." They are "Glorious" beings (Luke 9:26), and have "great knowledge," but are not Omniscient (all knowing). They neither marry nor are given in marriage. Matt. 22:30. That does not mean that they are "sexless" and have not the power of procreation. All the angels in the scriptures are spoken of as men, and were so created in great numbers, and as they do not die (Luke 20:36), there is no need for "Procreation," but that they have such power seems indisputable from Gen. 6:1-4, where we are told that the "sons of God" (angels), had intercourse with the "daughters of men," and the result was a race of "Mighty Men." From this we see that the angels can sin also.
Ministering Spirits.
These angels whom the Bible calls "Ministering Spirits" (Heb.1:14) have many varying different roles and functions to assist the Christian here on the earth. Not only do they minister to God before the Throne day and night but they also convey God's messages to His people.
Some have specific roles and are created to perform specific tasks such as the Guardian Angels of countries, territories and individuals. Although this subject is too vast to enter into here, perhaps this short article will allow you to study the subject further.
The Angels are "Ministering Spirits" to them who are "Heirs of Salvation," (Heb. 1:13, 14), and "Executioners of God's Wrath" on the "Wicked." 2 Thess. 1:7-8. They will gather the "Elect of Israel" from the four corners of the earth, (Matt. 24:31), and are commissioned to supply the physical needs of God's people. Matt. 4:11; I Kings 19:4-8.
There are three prominent Personages spoken of in the scriptures outside of the Triune God.
(1) MICHAEL: "Who is like God?"
Michael is mentioned three times in Daniel (Dan. 10:13, 21; 12:1), where he is called a "Prince" who stands for Daniel's people - the Jews. He is called in Jude 9 the Archangel. In Revelation 12:7 he is seen in command of the Angelic "Army of Heaven." His work seems to be to deliver God's people, particularly the Jews, from the power of Satan, and finally to oust him and his angels from the heavenlies, and cast them down on to the earth. Revelation 12:7-9. He also has something to do with the resurrection of the dead, for he is associated with the "Resurrection of Moses," (Jude 9) and the "Voice" of the Archangel that will be heard when the "dead in Christ" shall rise, (I Thess. 4:16), will be the "Voice" of Michael, for he is the only Archangel mentioned in the scripture.
There is a vast multitude of angels, John said, "I. . .heard the voice of many angels, numbering thousands upon thousands, and ten thousand times ten thousand" (Rev. 5:11). They are of various ranks and endowments (Col. 1:16), but only one - Michael - is expressly called an archangel in scripture (Jude 9).
(Daniel 8:3-26) - This prophecy covers the history of spiritual conflict in Israel (Dan. 11:2-35) to the tribulation (V. 36-42) when the archangel Michael aids in fully delivering Israel (Dan. 12:1): "Now at that time Michael the great prince who stands guard over the sons of Israel, will arise. And there will be a time of distress such as never occurred since there was a nation until that time; and that time your people, everyone who is found written in the book, will be rescued." In this prophecy not only is Michael connect with saving Israel but is also proves why the nation Israel has not been destroyed to this day.
ANGEL OF THE LORD.
In the OT we often find the phrase "the angel of the Lord." In almost every case, this messenger is regarded as deity and yet is distinguished from God (Gen. 16:7-14; 22:11-18; 31:11, 13; Exod. 3:2-5; Num. 22:22-35; Judges 6:11-23; 13:2-25; I Kings 19:5-7; I Chron. 21:15-17). These references show that the Angel is the Lord Himself adopting a visible form (and therefore a human appearance) for the sake of speaking with people (Judges 13:6, 10, 21).
One such notion is that when we die we become an angel and do good for others. This is certainly the view of Oprah Winfrey, but I am not sure where this idea comes from except that I remember people using it as a way of explaining what happens after death to young children. In any event, it contradicts the Biblical understanding of the Angelic which informs us that we will "Judge the Angels." It would seem that these ideas come from early folklore and fairy tales which have their roots in a European pre-Christian era. This would no doubt be the reason why so many Christians have rejected their existence as childish notions unbecoming of an intelligent adult.
(2) GABRIEL: "Man of God"
(3) SATAN:
The chief of the fallen spirits, the grand adversary of God and man. Without the article, the Hebrew word is used in a general sense to denote someone who is an opponent, an adversary - e.g., the angel who stood in Balaam's way (Num. 22:22), David as a possible opponent in battle (I Sam. 29:4), and a political adversary (I Kings 11:14). With the definite article prefixed, it is a proper noun (Job 1-2; Zech. 3:1-2) designating Satan as a personality.
In Psalm 109:6 the article is lacking, and reference may be to a human adversary (cf. NIV "an accuser"), but it is generally conceded that in I Chronicles 21:1 the word is a proper name without the article. The teaching concerning evil and a personal devil finds its full presentation only in the NT.
There the term Satan, transliterated from Hebrew, always designates the personal Satan (but cf. Matt. 16:23; Mark 8:33). This malignant foe is known in the NT by a number of other names and descriptive designations. He is often called the devil (Gr. diabolos), meaning "the slanderer" (Matt. 4:1; Luke 4:2; John 8:44; Eph. 6:11; Rev. 12:12). ("Devils" in KJV and ERV is properly "demons.") Other titles or descriptive designations applied to him are "Abaddon" or "Apollyon" (Rev. 9:11); "Accuser of our brothers" Rev. 12:10); "enemy," Greek antidikos (I Peter 5:8); "Beelzebud" (Matt. 12:24); "Belial" (II Cor. 6:15); the one who "Leads the whole world astray" (Rev. 12:9); "The evil one" (Matt. 13:19, 38; I John 2:13: 5:19); "the father of lies" (John 8:44); "the god of this age" (II Cor. 4:4); "a murderer" (John 8:44); "that ancient serpent" (Rev. 12:9); "The prince of this world" (John 12:31; 14:30); "the ruler of the kingdom of the air" (Eph. 2:2); "the tempter" (Matt. 4:5; I Thess. 3:5).
HE IS NOT A "PRINCIPLE OF EVIL" HE IS A - PERSON.
NOTE: I PETER 5:8
he "walketh," he "roareth," he is to be "chained." Revelation 20:1-3. These could not be said of a "principle of evil." He has many names or aliases but the ones that stand out are:
SATAN, BEELZEBUB, ADVERSARY, DEVIL, BELIAL, DRAGON, SERPENT, LUCIFER.
He is mentioned by one or the other of these names 174 times in the Bible.
He is a great "Celestial Potentate." He is:
"The Prince of the power of the air." Eph. 2:2.
"The God of this God." (Age) II Cor. 4:4.
Lucifer, Son of the morning.
This was his glorious title when he was created, and this world of ours was made, at which time-
"The 'Morning Stars,' (probably other glorious created ruling being like himself), sang together, and all the 'Sons of God,' (Angels), shouted for joy." Job 38:7.
It is well to note that the one here called "Lucifer, son of the morning," is in verse four, (Isa. 14:4), also called the "King of Babylon." As there never has been a king of Babylon like the one here described, the description must be that of a "Future" king of Babylon. And as "Antichrist is to have for his Capital City Babylon rebuilt," this is probably a "foreview" by the Prophet of Antichrist, as indwelt by "Lucifer," or "Satan," in that day when he shall be "king of Babylon."
Some think that when this world was created and fit for habitation, Satan was placed in charge of it, and it was then, as Isaiah declares, that Satan said in his heart -
(1) "I will ascend into heaven,"
(2) "I will exalt my throne above the 'Stars of God' (other ruling powers);"
(3) "I will sit also upon the Mount of the Congregation, in the sides of the north."
(4) "I will ascend above the heights of the clouds;"
(5) "I will be like
THE MOST HIGH:"
and that it was for this presumptuous act that the "Pre-Adamite World" became a chaos, and "without form and void," as described in Gen. 1:2.
This would justify the claim of Satan that this world belongs to him, and that he had the right and power to transfer the "Kingdoms of the world" to Christ, if He would only acknowledge Satan's supremacy, (Matt. 4:8, 9). And it accounts for the persistent war Satan is waging against the Almighty to retain his possession of the earth.
Jesus made a prophetic statement about Himself in the matter of Satan;
"I am come in my Father's name, and ye receive me not; if another shall come in his own name, him ye will receive." John 5:43.
The Jews rejected Jesus as their Messiah, just as He said they would, when the Antichrist comes they will accept him..........
4.) NEPHILIM: (Gen. 6:1-4)
(V.4) There were giants in the earth in those days; and also after that, when the sons of God came in unto the daughters of men, and they bare children to them, the same became mighty men which were of old, men of renown.

Nephilim were found in Canaan when the spies went through the land in (Num. 13:33 called giants) Beside these men of great stature, the spies felt like grasshoppers. Once (Job 16:14) "giant" is a translation of the Hebrew [gibbor].
These angels which broke God's law were chained in everlasting darkness until the day of judgment according to I Peter 3:19-20, "By which also he went and preached unto the spirits in prison;" they were the spirits before the flood showing also that the flood was connected to these spirits.
In this I have added a video because space is limited and much more can be said in less space about these nephilim and how they came to be and what happened to them; I hope that you enjoy it and please remember nothing is conclusive until all the facts are in and with the limited access to the book of Enoch there can be no real proof to who and how the nephilim came to be if they ever did come to be, could these beings just be a taller, stronger man that brought fear and so they were called part angel and part man, you be the judge of your own mind with you accept the facts left here or not, if you have an idea about the nephilim place leave it here to be added as another point of view.