Now viewing scripture range from the book of Genesis chapter 6:2 through chapter 6:5...
2 That the sons of God saw the daughters of men that they [were] fair; and they took them wives of all which they chose.
3 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.
4 There were giants in the earth in those days; and also after that, when the sons of God came in unto the daughters of men, and they bare [children] to them, the same [became] mighty men which [were] of old, men of renown.
5 And GOD saw that the wickedness of man [was] great in the earth, and [that] every imagination of the thoughts of his heart [was] only evil continually.