Cain was the firstborn of humanity.
Genesis 4:1 And Adam knew Eve his wife; and she conceived, and bare Cain, and said, I have gotten a man from the LORD.
Other daughters and sons were also born but Cain and Abel are specifically mentioned for this story. Tradition has it that Eve bore 56 children over several hundred years.
4:2 And she again bare his brother Abel. And Abel was a keeper of sheep, but Cain was a tiller of the ground.
Over time Cain and Abel each brought offerings to the Creator. This strongly implies that Christ had not left them alone but continued to teach them of God’s ways as the Father’s High Priest called Melchisedec, and that the sacrifice of clean animal sacrifices and the subject of salvation by sacrifice and sincere repentance was being taught.
It is also evident that the nature of the desired sacrifice was known, otherwise Cain’s sacrifice would not have been rejected; further this clearly implies that the law of clean and unclean had been put into play, otherwise the nature of an acceptable sacrifice would be unknown, and Cain’s sacrifice would not have been rejected. We shall see that this is true when we come to Genesis 6-7.
The sacrifice of a lamb which represented the Creator himself as the true Lamb of God was accepted; but the offering of the produce of the earth, which represented earthy carnal man was not accepted.
This incident again illustrates that we must follow the whole Word of God to be covered by the application of the sacrifice of Christ, the Lamb of God; to be reconciled to God the Father in heaven; and that doing what we decide for ourselves is right is not acceptable to God.
At Sinai a fuller sacrificial system was commanded by God, but its beginnings came when sin came into the world.
4:3 And in process of time it came to pass, that Cain brought of the fruit of the ground an offering unto the LORD. 4:4 And Abel, he also brought of the firstlings of his flock and of the fat thereof. And the LORD had respect unto Abel and to his offering: 4:5 But unto Cain and to his offering he had not respect
Cain was very angry because what he had decided for himself was NOT acceptable to God; and Christ explained to him that if he did right according to the Word of God he would also be accepted.
. . . And Cain was very wroth, and his countenance fell.
4:6 And the LORD said unto Cain, Why art thou wroth? and why is thy countenance fallen? 4:7 If thou doest well [keeps the whole Word of God], shalt thou not be accepted?
If we do well and are zealous to learn and to live by every Word of God, we are acceptable to God; but if we decide for ourselves what is right or wrong, sin rules over us.
and if thou doest not well [if we decide for ourselves what is right, instead of keeping the Word of God; it is sin], sin lieth at the door. And unto thee shall be his [sin’s] desire, and thou [properly IT] shalt rule over him [sin will rule over us].
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?
Cain was jealous of Abel because he was accepted by God, and Cain was convicted of his sin of doing what he wanted instead of what God had commanded; but instead of repenting he persecuted and killed his righteous brother. In the same way, many are convicted of their sins by the faithful example of the zealous, and turn to persecute the godly.
Genesis 4:8 And Cain talked with Abel his brother: and it came to pass, when they were in the field, that Cain rose up against Abel his brother, and slew him.
Christ then curses Cain for his shedding of the blood of the innocent.
4:9 And the LORD said unto Cain, Where is Abel thy brother? And he said, I know not: Am I my brother’s keeper? 4:10 And he said, What hast thou done? the voice of thy brother’s blood crieth unto me from the ground.
Does this mean literally that the blood cried out? Of course not; it is a figure of speach that the evidence of the blood makes the crime known. Then Jesus Christ judged Cain and cursed him so that the land would not yield its increase for him and he become a nomad, a wonderer, vagabond and fugitive for his shedding innocent blood.
4:11 And now art thou cursed from the earth, which hath opened her mouth to receive thy brother’s blood from thy hand; 4:12 When thou tillest the ground, it shall not henceforth yield unto thee her strength; a fugitive and a vagabond shalt thou be in the earth.
Cain instead of repenting, complains of his punishment.
4:13 And Cain said unto the LORD, My punishment is greater than I can bear. 4:14 Behold, thou hast driven me out this day from the face of the earth; and from thy face shall I be hid; and I shall be a fugitive and a vagabond in the earth; and it shall come to pass, that every one that findeth me shall slay me.
Then Christ the merciful, gave his protection to the physical Cain as long as he would live on the earth. This mark is not further explained and since Cain is long dead, has no meaning for us today.
4:15 And the LORD said unto him, Therefore whosoever slayeth Cain, vengeance shall be taken on him sevenfold. And the LORD set a mark upon Cain, lest any finding him should kill him.
The Family of Cain
Then Cain went east from the presence of God. This plainly shows that until that time, Adam and his wife and their first few children were still in contact with the Creator.
4:16 And Cain went out from the presence of the LORD, and dwelt in the land of Nod, on the east of Eden.
Cain had a family and built them a city; this was akin to a small farm village. Living and reproducing for hundreds of years they would later have eventually become quite a large number of people.
4:17 And Cain knew his wife; and she conceived, and bare Enoch: and he builded a city, and called the name of the city, after the name of his son, Enoch. 4:18 And unto Enoch was born Irad: and Irad begat Mehujael: and Mehujael begat Methusael: and Methusael begat Lamech.
In the fifth generation of Cain Lamech was born and he became the father of the pre Noach flood nomads, musicians and metal workers. These were all destroyed by the flood and is probably mentioned to inform us that mankind did develop before the flood.
4:19 And Lamech took unto him two wives: the name of the one was Adah, and the name of the other Zillah.
4:20 And Adah bare Jabal: he was the father of such as dwell in tents, and of such as have cattle. 4:21 And his brother’s name was Jubal: he was the father of all such as handle the harp and organ.
4:22 And Zillah, she also bare Tubalcain, an instructer of every artificer in brass and iron: and the sister of Tubalcain was Naamah.
Lamech the descendant of Cain also murdered as did his forefather Cain.
4:23 And Lamech said unto his wives, Adah and Zillah, Hear my voice; ye wives of Lamech, hearken unto my speech: for I have slain a man to my wounding, and a young man to my hurt.
God had decreed that Cain was not to be killed by men for his crime v 15, and Lamech knowing that, desired the same protection for himself and said:
4:24 If Cain shall be avenged sevenfold, truly Lamech seventy and sevenfold.
The Righteous Line
After Abel died Adam had another son, whom he considered a replacement for righteous Abel. God the Father called Seth to Christ to keep the righteousness of the Word of God, just as he had called out Abel.
There is no indication of when Seth was born in relation to these deeds and the descendants of Cain. It is highly probable that Seth was born to Adam very quickly after Cain had fled and lived contemporary with Cain.
Hebrews 11:4 By faith Abel offered unto God a more excellent sacrifice than Cain, by which he obtained witness that he was righteous, God testifying of his gifts: and by it he being dead yet speaketh. [His example of faithful obedience was recorded for us.]
Genesis 4:25 And Adam knew his wife again; and she bare a son, and called his name Seth: For God, said she, hath appointed me another seed instead of Abel, whom Cain slew.
Seth called upon God and was righteous like Abel; Seth was faithful to the Creator and taught his own son Enos to be likewise. And Enos his son did likewise; so that there were godly persons again on the earth after the death of Abel.
4:26 And to Seth, to him also there was born a son; and he called his name Enos: then began men to call upon the name of the LORD [after righteous Abel had died].
The generations [descendants of] Adam, as counted through Seth; the righteous father of the righteous on the earth before the flood of Noah.
Humanity and all higher creatures were created male and female, each kind to reproduce after its own kind: with man being created after the God kind. Physical humans are embryonic children of God and have the capacity to be changed from the physical state to spiritual composition by God at the resurrection; if they are faithful to God their Father and his Word.
Genesis 5:1 This is the book of the generations of Adam. In the day that God created man, in the likeness of God made he him; 5:2 Male and female created he them; and blessed them, and called their name Adam, in the day when they were created.
Regardless of when Cain and Abel were born and grew up, Seth was born 130 years after the creation of Adam.
5:3 And Adam lived an hundred and thirty years, and begat a son in his own likeness, and after his image; and called his name Seth:
5:4 And the days of Adam after he had begotten Seth were eight hundred years: and he begat sons and daughters: 5:5 And all the days that Adam lived were nine hundred and thirty years: and he died.
5:6 And Seth lived an hundred and five years, and begat Enos: 5:7 And Seth lived after he begat Enos eight hundred and seven years, and begat sons and daughters: 5:8 And all the days of Seth were nine hundred and twelve years: and he died.
5:9 And Enos lived ninety years, and begat Cainan: 5:10 And Enos lived after he begat Cainan eight hundred and fifteen years, and begat sons and daughters: 5:11 And all the days of Enos were nine hundred and five years: and he died.
5:12 And Cainan lived seventy years and begat Mahalaleel: 5:13 And Cainan lived after he begat Mahalaleel eight hundred and forty years, and begat sons and daughters: 5:14 And all the days of Cainan were nine hundred and ten years: and he died.
5:15 And Mahalaleel lived sixty and five years, and begat Jared: 5:16 And Mahalaleel lived after he begat Jared eight hundred and thirty years, and begat sons and daughters: 5:17 And all the days of Mahalaleel were eight hundred ninety and five years: and he died.
5:18 And Jared lived an hundred sixty and two years, and he begat Enoch: 5:19 And Jared lived after he begat Enoch eight hundred years, and begat sons and daughters: 5:20 And all the days of Jared were nine hundred sixty and two years: and he died.
Because of his faith Enoch was translated from one place to a refuge by God when some sought to destroy him; however he later eventually died (Heb 11:13).
Hebrews 11:5 By faith Enoch was translated [taken away to another place] that he should not see death [was saved from being murdered for his righteousness]; and was not found, because God had translated [removed him from the danger to anther place] him: for before his translation he had this testimony, that he pleased God.
Hebrews 11:13 These all died in faith, not having received the promises, but having seen them afar off, and were persuaded of them, and embraced them, and confessed that they were strangers and pilgrims on the earth.
Genesis 5:21 And Enoch lived sixty and five years, and begat Methuselah: 5:22 And Enoch walked with God after he begat Methuselah three hundred years, and begat sons and daughters: 5:23 And all the days of Enoch were three hundred sixty and five years: 5:24 And Enoch walked with God: and he was not; for God took him.
Enoch was a prophet of God whose book is no longer in existence. There is a fraudulent claim of a Book of Enoch having been found in Ethiopia, but that book is filled with scriptural errors and is now understood to be the creation of a western explorer trying to make a name for himself.
This fraudulent book supposedly found in Abyssinia, is a main source for the gross error that angels copulated with men to produce giants; Jesus Christ told us that angels do not reproduce (Mat 22:30, Mark 12:25 and Luke 20:35).
5:25 And Methuselah lived an hundred eighty and seven years, and begat Lamech. [Note that this was a completely different Lamech being of the line of Seth, than the Lamech who descended of Cain. In the past some have confused the two Lamech’s.]
Methuselah did not live for 1,000 years as some have supposed.
5:26 And Methuselah lived after he begat Lamech seven hundred eighty and two years, and begat sons and daughters: 5:27 And all the days of Methuselah were nine hundred sixty and nine years: and he died.
5:28 And Lamech lived an hundred eighty and two years, and begat a son: 5:29 And he called his name Noah, saying, This same shall comfort us concerning our work and toil of our hands, because of the ground which the LORD hath cursed.
5:30 And Lamech lived after he begat Noah five hundred ninety and five years, and begat sons and daughters: 5:31 And all the days of Lamech were seven hundred seventy and seven years: and he died.
5:32 And Noah was five hundred years old: and Noah begat Shem, Ham, and Japheth.