Genesis 6:1-3

1 And it cometh to pass that mankind have begun to multiply on the face of the ground, and daughters have been born to them,

2 and sons of God see the daughters of men that they [are] fair, and they take to themselves women of all whom they have chosen.

3 And JEHOVAH saith, ‘My Spirit doth not strive in man — to the age; in their erring they [are] flesh:’ and his days have been an hundred and twenty years.