Genesis 9:21-23

Darby Translation

²¹ And he drank of the wine, and was drunken, and he uncovered himself in his tent.

²² And Ham the father of Canaan saw the nakedness of his father, and told his two brethren outside.

²³ And Shem and Japheth took the upper garment and both laid [it] upon their shoulders, and went backwards, and covered the nakedness of their father. And their faces were turned away, that they saw not their father's nakedness.