Genesis 9:20-24

And Noah began to be a farmer, and he planted a vineyard. Then he drank of the wine and was drunk, and became uncovered in his tent. And Ham, the father of Canaan, saw the nakedness of his father, and told his two brothers outside. But Shem and Japheth took a garment, laid it on both their shoulders, and went backward and covered the nakedness of their father. Their faces were turned away, and they did not see their father’s nakedness. So Noah awoke from his wine, and knew what his younger son had done to him.