Genesis 9:22-24

Young's Literal Translation

²² And Ham, father of Canaan, seeth the nakedness of his father, and declareth to his two brethren without.

²³ And Shem taketh -- Japheth also -- the garment, and they place on the shoulder of them both, and go backward, and cover the nakedness of their father; and their faces [are] backward, and their father's nakedness they have not seen.

²⁴ And Noah awaketh from his wine, and knoweth that which his young son hath done to him,