According to the Will of God the earth produced vegetation: plants bearing seeds, each according to its own type, and trees bearing fruit with seeds, each according to its own type (Genesis 1:12). In that world of lots of green and many waters, man could live freely and, by the blessing of God, could reproduce by making children themselves and increase like the other creatures could (Genesis 1). It was up to man to give names to those animals and plants. They were even allowed to rule the fish in the sea, the birds in the sky, the domestic animals all over the earth, and all the animals that crawl on the earth (Genesis 1:26)
And Elohim blessed them, and Elohim said unto them, Be fruitful, and multiply, and replenish the earth, and subdue it: and have dominion over the fish of the sea, and over the fowl of the air, and over every living thing that moveth upon the earth. And Elohim said, Behold, I have given you every herb bearing seed, which is upon the face of all the earth, and every tree, in the which is the fruit of a tree yielding seed; to you it shall be for meat. And to every beast of the earth, and to every fowl of the air, and to every thing that creepeth upon the earth, wherein there is life, I have given every green herb for meat: and it was so. And Elohim saw every thing that he had made, and, behold, it was very good. And the evening and the morning were the sixth day.
(Gen 1:28-31 IAV)
Having no shortage of food, the man and woman could bring forth children.
Obviously every living thing begotten from another living thing is in its likeness and after its image. When Adam was 130 years old, he became the father “of a son” in his own likeness, “after” his own image, for God had appointed him and his chavah another child instead of Abel, for Cain killed him.
And Adam knew his wife again; and she bare a son, and called his name Shet: For Elohim, said she, hath appointed me another seed instead of Abel, whom Kayin slew. And to Shet, to him also there was born a son; and he called his name Enos: then began men to call upon the name of YY .
(Gen 4:25-26 IAV)
And Adam lived an hundred and thirty years, and begat a son in his own likeness, and after his image; and called his name Shet:
(Gen 5:3 IAV)
This verse is telling us that Adam begot a son “in His likeness after His image,” just as Adam himself had originally been. We were not told this about Cain and Abel simply because the text did not wish to discuss them at length. But it does tell us here, because it is Seth on whom the world is based. Or, since Adam was created in a state of complete physical perfection, the verse may be telling us that Seth was in his likeness after his image — his equal in strength and beauty.
When Adam’s third son, born after the murder of Abel by his brother Cain, had lived 105 years, he fathered Enos(h), it means man – mankind. Seth lived after he fathered Enosh 807 years and had other sons and daughters before he died at the blessed age of 912 years.
And the days of Adam after he had begotten Shet were eight hundred years: and he begat sons and daughters: And all the days that Adam lived were nine hundred and thirty years: and he died. And Shet lived an hundred and five years, and begat Enos: And Shet lived after he begat Enos eight hundred and seven years, and begat sons and daughters: And all the days of Shet were nine hundred and twelve years: and he died.
(Gen 5:4-8 IAV)
Next: Bereshith 5: Adam’s Descendants to Noah #4 From Enosh to another Enoch