The Holy Bible is not meant to be argued over or meant to prove anything. It is GOD's word, and you either believe it or you don't. *Those who believe and try their best within their walk in HIS (GOD's) RIGHTEOUSNESS... not their own, will Live forever, those who do not will die twice. First of the flesh, going back to dust, and then cast into eternal damnation with all the others who had every opportunity to accept GOD's gift of salvation through Jesus Christ.
To answer you question GIGA POWER, as taken from the KJV Hebrew-Greek KEY WORD "Study Bible" explination notations:
Genesis 4:3-7:
---God is a respecter of persons or he is completely imparital. The first series of text implies that a righteous and benevolent "respect" based on proper discrimination as to the character of GOD exersices towards man. The second series of biblical refrences denotes a "respect" which is partial, arising out of selfish and unworthy considerations which GOD does not exercise because he is impartial. That GOD accepted Abel's sacrifice and rejected Cain's was not based on the fact tha Cain's sacrifice was bloodless. Many of the required OT offerings were bloodless (as meal and meat offerings). The basic difference was in the hearts of two men. Abel offered in faith (Heb 11:4) while Cain did not. This offering but onto Cain and his offspring he had not respect. Only when they are offered in faith do the sacrifices and service of men please GOD. (IS 1:11-17, Eph 6:5-7)
Genesis 4:13, 14
---Cain's cry was one of remorse but not true repenteance. He was overwhelmed by the severity of is sentence, but he was not sorry for his crime. There was no plea for pardon or expression of sorrow or regret. He was as selfish person who was about to be deprived of all material belongings and driven into the wilderness. Cain was afraid that some of the relatives of Abel would find him and kill him in revenge. Thus it is logical to assume that the population of the world had already multiplied considerably since the expulsion of Adam & Eve from the Garden of Eden.
Genesis 4:17
--- The Origin of Cain's wife had perplexed many ppl, Genesis does not answer the question directly, but Genesis 5:4 asserts that Adam had other sons and daughters besides the three sons whose names appear in the text. Given the longevity of people at that time, Cain could have married onf of his own sisters or even a more distant relative.
END QUOTAION OF KJV HEBREW-GREEK STUDY BIBLE
*Now remember GOD is the creator of all things, EVERYTHING. Thus stuff like inbreeding and being mentally retarded wasn't happening at that time. *By the time GOD had flooded the world it was because the fallen angels (of Satan's camp) had coupled up with the women of the Earth at the time, and nothing good came from ppl's thoughts, and deeds. Only NOAH was a man after GOD's heart, thus he was spared. As he built the Arch everyone thought he was an idiot, until 600 years later the rain began (it had never rained up until then) and then suddenly everyone wanted on the boat. Ooops... to late!
Some other stuff to think about and ponder over from scripture.
"In the begining was the Word ... and the word was with GOD and the word was GOD. The same was in the begining with GOD. All things were made by him, and without him was not anything made that was made. In him was LIFE, and the life was the light of men. And the light shineth in the darkness... and the darkness comprehened it not.
---Book of John 1-1:5 KJV
Therefore being justified by FAITH, we have PEACE with GOD through our Lord Jesus Christ: By whom also we have access by faith into this grace wherein we stand, and rejoice in HOPE of the glory of GOD. And not only so, but we glory in tribulations also: knowing that tribulation worketh patience... and patience, EXPERIENCE and experience, HOPE. And HOPE maketh not ashamed; because the LOVE of GOD is shed aborad in our hearts by the Holy Ghost which is given onto us. (Believers in Christ) For when we were yet without strength in due time Christ died for the UnGODLY. For scarcely for a righteous man will one die: yet Preadventure for a good man, some would even dare to die. But GOD commendeth his love towards us, in that, while were yet sinners, CHRIST died for us. Much more then, being now JUSTIFIED by His Blood we shall be saved from wrath through him.
---Romans 5-5:9 KJV
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