The angels that sinned back in Genesis 6:2-4 were called “sons of God” in contrast to the “daughters of men.” This term, “sons of God” refers to spiritual beings that have access to the heavens—in contrast to earth-bound fleshly creatures. Thus we see the “sons of God” standing before God in Job 1:6. In the New Testament the term is used to describe men and women who can “become the sons of God” (John 1:12) through Jesus Christ.Genesis 6:2 also says that these sons of God took “the daughters of men” as wives and produced children by them. The Hebrew word for “men” is awdawm, or Adam, which is the usual word for men or mankind. When the Bible refers to the man Adam himself, it says ha-awdawm, or “the (man) Adam.” The article “the” makes the term specific. Dr. Bullinger points out in The Companion Bible, Appendix 14,“Adam, without the article, denotes man or mankind in general (Gen. 1:26; 2:5; 5:1). With the article, it denotes the man, Adam. . . .”With this in mind, let us read Genesis 6:1, 2,1 Now it came about, when Adam [ha-awdawm] began to multiply on the face of the land, and daughters were born to them [Adam and Eve, Gen. 1:27; 5:2] 2 that the sons of God saw that the daughters of Adam [ha-awdawm] were beautiful; and they took wives for themselves, whomever they chose.Adam and Eve had both sons and daughters. Adam's daughters were beautiful, and these angels took them as wives. Verse 4 says that they had children by them. Ultimately, the earth was so corrupted by this genetic mixture that God sent the flood to destroy them. Only Noah was found to be “perfect in his genealogy” (Gen. 6:9, literal). God's motive is given in Genesis 6:3, which reads literally,3 My Spirit will not always [olam] strive (as in court) with the (man) Adam in their straying, because he also is flesh . . .In other words, though these other spirits (fallen angels) would attempt to fulfill the prophecies by their own cohabitation with women on earth, the Spirit of God will intervene and not allow this to happen. The flood, then, was designed to thwart these fallen angels in their design.These angels were called Nephilim, or “giants” in Genesis 6:4. This is the plural form of nephil, “a feller,” or one who cuts others down; hence, a bully or tyrant. The root word is naphal, “to fall.” This is probably the origin of the idea of “fallen” angels. Though Nephilim applies primarily to their actions in cutting down others, it carries this secondary meaning of having been felled by God in the flood.The nature of their “fall” in the sense of their disobedience is given in Jude 6,6 And angels who did not keep their own domain, but abandoned their proper abode, He has kept in eternal bonds under darkness for the judgment of the great day.In other words, these angels desired to become flesh and dwell with the daughters of Adam. Why? Because angels are spirits, and they have the ability to manifest in flesh, but what they did not have was a soul. Nowhere in the Bible do we find that angels were given souls. The soul is in the blood, Leviticus 17:11 tells us. Angels do not have blood. They coveted a soul in order to gain authority over the earth, for God made man a living soul (Gen. 2:7) and gave man dominion over the earth (Genesis 1:26). In that sense, angels “fell” from heaven to earth—but then fell from earth to Tartarus.Jude then relates the fallen angels to Sodom and Gomorrah, where the people “indulged in gross immorality and went after strange flesh” (Jude 7). The term “strange flesh” simply means foreign flesh—that is, in the Biblical sense, forbidden sexual relations or marriages. The angels were not allowed to marry the daughters of men, even as the men of Sodom were not allowed to marry other men in homosexual unions. This is, of course, one of the major social and moral issues facing us today. In the name of liberty we are once again going the way of Sodom.Another intriguing question is the fact that Jesus said the last days would be “as in the days of Noah” (Matt. 24:37). We know that there were Nephilim even AFTER the flood, for Genesis 6:4 says,4 The Nephilim were on the earth in those days, and also afterward [Heb. ken, “to set upright; correct”], when the sons of God came in to the daughters of men, and they bore children to them. Those were the mighty men [Heb. gibbor] who were of old men of renown.So we see that even after God brought correction by means of the flood, there were Nephilim who again took the daughters of men and had more children by them. The Nephilim's children thereafter usually were called Gibbor, “mighty men,” and Rephaim, from rapha, “to heal, invigorate.” The twelve spies in Israel saw these Nephilim when they spied out the land, and this is what made the people most afraid to enter the land at that time. We read of this in Numbers 13:32, 33,32 So they gave out to the sons of Israel a bad report of the land which they had spied out, saying, The land through which we have gone, in spying it out, is a land that devours its inhabitants; and all the men whom we saw in it are men of great size. 33 There also we saw the Nephilim (the sons of Anak are part of the Gibbor); and we became like grasshoppers in our own sight, and so we were in their sight.This verse equates the Nephilim with the Gibbor. Joshua destroyed most of the Anakim in Joshua 11:21, 22,21 Then Joshua came at that time and cut off the Anakim from the hill country, from Hebron, from Debir, from Anab and from all the hill country of Judah and from all the hill country of Israel. Joshua utterly destroyed them with their cities. 22 There were no Anakim left in the land of the sons of Israel; only in Gaza, in Gath, and in Ashdod some remained.Some yet remained until the time of David. Goliath of Gath came from this family of Anak, where some of these giants remained. David slew Goliath, and in a later battle Goliath's brother was killed along with their sons (1 Chron. 20:5-8).If we are living now in the days comparable to those of Noah, then perhaps this may have bearing on the question of UFO's and so-called “extra-terrestrials.” I know that these really exist because back in 1975, I was approximately 50 feet below a UFO and I was curious but not afraid. It lingered for about 15 minutes and within a split second it was gone.Logabe