en_tn_condensed/jos/01/15.md

given your brothers rest

This refers to Israel defeating all their enemies residing in Canaan that they were to conquer. (See: rc://en/ta/man/jit/figs-idiom)

you will ... possess it

This refers to living out their life on the land in peace.

beyond the Jordan, where the sun rises

This refers to the east side of the Jordan river. (See: rc://en/ta/man/jit/figs-idiom)