Genesis 9:22

And Ham, the father of Canaan, saw the nakedness of his father, and told his two brethren without. This act on the part of Ham, enjoying the shame of his father in making it a matter of scornful joking over against his brothers, showed both a lack of the proper respect toward his father and a proneness toward indecency, in short, a bold and impious disposition of mind. He had evidently forgotten the earnest piety which he had learned from his father.