en_tn/gen/49/15.md

Issachar ... He sees ... He will

Here "Issachar" is a metonym that stands for his descendants. Alternate translation: "The descendants of Issachar ... They see ... They will" (See: rc://en/ta/man/translate/figs-metonymy)

a good resting place and the pleasant land

"a resting place that is good and that the land is pleasant"

He will bend his shoulder to the burden

The phrase "bend his shoulder to the burden" is a way of saying "work very hard to carry the load" (See: rc://en/ta/man/translate/figs-idiom)

become a servant for the task

"will work for others as slaves"