Viewing verse 20 of Genesis 9 (with context)
Read Full Chapter And God said unto Noah, This is the token of the covenant, which I have established between me and all flesh that is upon the earth.
And the sons of Noah, that went forth of the ark, were Shem, and Ham, and Japheth: and Ham is the father of Canaan.
These are the three sons of Noah: and of them was the whole earth overspread.
And Noah began to be an husbandman, and he planted a vineyard:
And he drank of the wine, and was drunken; and he was uncovered within his tent.
And Ham, the father of Canaan, saw the nakedness of his father, and told his two brethren without.
And Shem and Japheth took a garment, and laid it upon both their shoulders, and went backward, and covered the nakedness of their father; and their faces were backward, and they saw not their father's nakedness.