Genesis 6:1-3

1 And it came to be, when men began to increase on the face of the earth, and daughters were born to them,

2 that the sons of Elohim saw the daughters of men, that they were good. And they took wives for themselves of all whom they chose.

3 And יהוה said, “My Spirit shall not strive with man forever in his going astray. He is flesh, and his days shall be one hundred and twenty years.”