en_tn/gen/49/12.md

His eyes will be as dark as wine

This refers to the color of a person's eyes to the red color of wine. Possible meanings are 1) dark eyes imply healthy eyes or 2) people eyes will be red from drinking too much of wine. (See: rc://en/ta/man/translate/figs-simile and rc://en/ta/man/translate/figs-explicit)

his teeth as white as milk

This compare the color of the person's teeth to the white color of milk. This implies that there will be so many healthy cows they will have much milk to drink. (See: rc://en/ta/man/translate/figs-simile and rc://en/ta/man/translate/figs-explicit)