Genesis 4:1

Cain and Abel

1Now Adam knew Eve his wife, and she conceived and bore Cain, saying, “I have gotten
 Cain sounds like the Hebrew for  gotten
a man with the help of the Lord.”

Genesis 6:4

4The Nephilim
Or giants
were on the earth in those days, and also afterward, when the sons of God came in to the daughters of man and they bore children to them. These were the mighty men who were of old, the men of renown.

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