NET Bible
"So the LORD said,“My Spirit will not remain in humankind indefinitely, since they are mortal. They will remain for 120 more years.”"
— Genesis 6:3, NET Bible
“And the Lord said, My spirit shall not always strive with man, for that he also is flesh: yet his days shall be an hundred and twenty years.”
“And Jehovah said, My Spirit shall not strive with man for ever, for that he also is flesh: yet shall his days be a hundred and twenty years. ”
“Yahweh said, "My Spirit will not strive with man forever, because he also is flesh; yet will his days be one hundred twenty years."”
“And God said: My spirit shall not remain in man for ever, because he is flesh, and his days shall be a hundred and twenty years.”
“And the Lord said, My spirit will not be in man for ever, for he is only flesh; so the days of his life will be a hundred and twenty years.”
“And the Lord said, My spirit shall not always strive with man, for that he also is flesh: yet his days shall be an hundred and twenty years.”
God’s Grief over Humankind’s Wickedness When humankind began to multiply on the face of the earth, and daughters were born to them,
the sons of God saw that the daughters of humankind were beautiful. Thus they took wives for themselves from any they chose.
So the LORD said,“My Spirit will not remain in humankind indefinitely, since they are mortal. They will remain for 120 more years.”
The Nephilim were on the earth in those days(and also after this) when the sons of God would sleep with the daughters of humankind, who gave birth to their children. They were the mighty heroes of old, the famous men.
But the LORD saw that the wickedness of humankind had become great on the earth. Every inclination of the thoughts of their minds was only evil all the time.
The LORD regretted that he had made humankind on the earth, and he was highly offended.