The word "labor" refers to the work that Solomon commanded the people to do for his government. This is a metonym. (See: [[rc://en/ta/man/jit/figs-metonymy]])
This refers to the descendants of Joseph who were the people groups of Ephraim and Manasseh. This is a metonym. (See: [[rc://en/ta/man/jit/figs-metonymy]])