Genesis 9:20-23

²⁰Then Noah began farming and planted a vineyard. ²¹He drank of the wine and became drunk, and uncovered himself inside his tent. ²²Ham, the father of Canaan, saw the nakedness of his father, and told his two brothers outside. ²³But Shem and Japheth took a garment and laid it upon both their shoulders and walked backward and covered the nakedness of their father; and their faces were turned away, so that they did not see their father’s nakedness.