en_tn/deu/33/13.md

General Information:

Moses continues to bless the tribes of Israel; the blessings are short poems. (See: rc://en/ta/man/jit/figs-parallelism)

About Joseph

This refers to the tribe of Ephraim and the tribe of Manasseh. Both tribes descended from Joseph.

May his land be blessed by Yahweh

The word "his" refers to Joseph which represents the tribes of Ephraim and Manasseh. This can be stated in active form. Alternate translation: "May Yahweh bless their land" (See: rc://en/ta/man/jit/figs-metonymy and rc://en/ta/man/jit/figs-activepassive)

with the precious things of heaven, with the dew

"with the precious dew from the sky" or "with the precious rain from the sky"

dew

water that forms on leaves and grass on cool mornings. See how you translated this in Deuteronomy 32:2.

the deep that lies beneath

This refers to the water under the ground.