9.25: Canaan cursed by his father: Commentators are far from unanimous. Some omit the problem. Perhaps the best is that in Biblia Comentada by Colunga and Cordero. They take Shem to stand for all Hebrews, blessed in that the Messiah was to come from them. Cham is Egypt (= Kem). Jews had kindly feelings to Egypt in spite of the slavery. Dt. 23.7 urges them not to detest the Egyptians. They used it as a place of refuge, as in case of Infant Jesus. But Canaan was subdued by the Jews, and in that sense was enslaved. (It is a prophecy rather than a wishing of evil: cf. the case of Genesis 3.17; The earth is no longer to bear fruits without tilling. Japheth (enlargement) stands for spread of Israel.

The nudity of Noah was accidental, not intended, but brought proper response of reverence from two sons.

Speaking of Noah as a tiller of soil is later than the same from Cain - mentioned here to show perhaps to show agricultural life is less good than nomadic.