Genesis 6:4-7

4In those days were the giants on the earth, and also afterwards, when the sons of 1God 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.

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

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

7And Jehovah said, I will destroy Man, whom I have created, from the earth — from man to cattle, to creeping things, and to fowl of the heavens; for I repent that I have made them.