Genesis 6:4-6

Darby Translation

⁴ In those days were the giants on the earth, and also afterwards, when the sons of God had come in to the daughters of men, and they had borne [children] to them; these were the heroes, who of old were men of renown.

⁵ And Jehovah saw that the wickedness of Man was great on the earth, and every imagination of the thoughts of his heart only evil continually.

⁶ And Jehovah repented that he had made Man on the earth, and it grieved him in his heart.