Genesis 2:19 (NKJV)

19 Out of the ground the Lord God formed every beast of the field and every bird of the air, and brought them to Adam to see what he would call them.

And whatever Adam called each living creature, that was its name.

Communicate or extend ourselves from our own selves into the environment, universe or cosmos that surrounds us.

1: The first way to extend ourselves is via speech or the art of speaking.
2: The second way is via sexual intercourse, man giving his seed into the woman.

And through those two means will multiply and increase in evil or good.

Genesis 2:23 (NKJV)

23 And Adam said:

“This is now bone of my bones And flesh of my flesh; She shall be called Woman,
Because she was taken out of Man.”

Genesis 4:1 (NKJV)

Adam knew Eve or passed down his knowledge via his seed to Eve:

4 Now Adam knew Eve his wife, and she conceived and bore Cain, and said, “I have acquired a man from the Lord.”

Genesis 4:15 (NKJV)

After Cain had killed Abel:

15 And the Lord said to him, “Therefore, whoever kills Cain, vengeance shall be taken on him sevenfold.” And the Lord set a mark on Cain, lest anyone finding him should kill him.

Matthew 12:43 (NKJV)

An Unclean Spirit or demon Returns:

43 “When an unclean spirit goes out of a man, he goes through dry places, seeking rest, and finds none.

44 Then he says, ‘I will return to my house from which I came.’ And when he comes, he finds it empty, swept, and put in order.

Matthew 12:45 (NKJV)

45 Then he goes and takes with him seven other spirits more wicked than himself, and they enter and dwell there; and the last state of that man is worse than the first.

So shall it also be with this wicked generation.”

Genesis 4:23 (NKJV)

23 Then Lamech said to his wives:

“Adah and Zillah, hear my voice;
Wives of Lamech, listen to my speech!
For I have killed a man for wounding me,
Even a young man for hurting me.

Genesis 4:24 (NKJV)

24 If Cain shall be avenged sevenfold,
Then Lamech seventy-sevenfold.”

The fallen angels of Satan speeds up the evil by incarnating and genetically imparting it into the human nature by angels coming down to have sex with daughters of me.

The Wickedness of man extend and multiplied via the act of misusing sexand

6 Now it came to pass, when men began to multiply on the face of the earth, and daughters were born to them, 2 that the sons of God saw the daughters of men, that they were beautiful; and they took wives for themselves of all whom they chose.

3 And the Lord said, “My Spirit shall not strive with man forever, for he is indeed flesh; yet his days shall be one hundred and twenty years.”

Finally the imaginations communicated inform of dreams, thoughts, ideas,, being exchanged from humans into the universe, and from the universe back into the humans mind, became extremely evil.

Genesis 6:5 (NKJV)

5 Then the Lord[a] saw that the wickedness of man was great in the earth, and that every intent of the thoughts of his heart was only evil continually.