In Romans 4 St. Paul states “where no law is, there is no transgression.” (vs. 15 ) In Romans 5 he states that “until the law sin was in the world: but sin is not imputed when there is no law.” (vv. 13-14) Ostensibly there was only one law imputed to Adam and Eve for breach of which sin was imputed to them; they were forbidden to eat of the tree of the knowledge of good and evil. In the days of Noah God punished antediluvian Adamic man for their sin (Genesis 6.5-13), but what was their sin? And what can this tell us about the sin committed in the garden?
Genesis chapter 6 gives an account of miscegenation between certain Angels and Adamic women (vv. 1-4). These Angels are elsewhere refered to as “the Angels which kept not their first estate” (Jude 1.6) and “the Angels that sinned” (2 Peter 2.4).
Many skeptics claim that the sons of God in Genesis 6.2 are merely Adamic men since Scripture tells us elsewhere that Adam was the son of God (Luke 3.38). This is also true of Adam’s descendants, and especially of Israel (Deuteronomy 14.1, Isaiah 43.6, 45.11, Hosea 1.10, 1 John 3.1-2) but it might also be said of other branches of the Adamic race, such as the Japhetic Ionian Greeks (Acts 17.28).
This objection to the traditional interpretation of Genesis 6.1-4 is found to be lacking as it can be shown that the Angels are also called sons of God in Scripture (Job 1.6, 38.7). The Codex Alexandrinus reads “Angels of God” at Genesis 6.2. Hybridization is the only sensible explanation for the freakish stature of the offspring in Genesis 6.4, for God’s natural creation always produces in the strict order of kind after kind (Genesis 1.11-12, 21, 24-25) and does not produce such abominable abnormalities.
From Genesis 2.16 to Genesis 6 there was only one law imputed to Adamic man: “of the tree of the knowledge of good and evil, thou shalt not eat of it” (Genesis 2.17). God was not punishing antediluvian Adamic man in the days of Noah without imputing law to him; rather He was punishing them for the very same sin committed by their ancestors in the garden: miscegenation with the brood of the fallen Angels; the genealogical tree which knew both good and evil.
God saw fit to cleanse the corrupted antediluvian world with a flood, but Noah was chosen to preserve the Adamic race because he was “perfect in his race [G1074]” (Genesis 6.9). Genea (Strong’s G1074) means “race, stock, family” (Liddell and Scott s.v.) or “men of the same stock, a family” (Thayer s.v.). His wife and sons were certainly of the same stock (Tobit 4.12) or the purity of Noah’s race would’ve been for nought. This interpretation is nothing new, and was well known to the 2nd century Christian writer Irenaeus, the Bishop of Lugdunum in Gaul:
“Since the Son of God is always one and the same, He gives to those who believe on Him a well of water [springing up] to eternal life, but He causes the unfruitful fig-tree immediately to dry up; and in the days of Noah He justly brought on the deluge for the purpose of extinguishing that most infamous race of men then existent, who could not bring forth fruit to God, since the angels that sinned had commingled with them, and [acted as He did] in order that He might put a check upon the sins of these men, but [that at the same time] He might preserve the archetype, the formation of Adam.”
-Irenaeus, Against Heresies, book 4, chapter 36
The pure lineage of Noah spawned all the great nations of the ancient world including Armenia, Egypt, Lydia, Assyria, Crete, Persia, Ionia, Babylon, Media and Thrace and was carried down through the ages to the modern nations of Christendom, the body of Christ. It was passed down through the elect line from Abraham, Isaac and Jacob to the the man Jesus Christ; the last Adam through whom we shall bear the image of the heavenly (1 Corinthians 15.45-50).