Here "sat" represents ruling or leading. Chiefs sat down when they made important decisions. AT: "led them as their chief" (See: [[rc://en/ta/man/translate/figs-metonymy]])
# sat as their chief
Job was their chief. AT: "led them because I was their chief" (See: [[rc://en/ta/man/translate/figs-metonymy]])
# I lived like a king in his army
Job speaks of how he led the people and how they obeyed him as if he were a king and they were his army. (See: [[rc://en/ta/man/translate/figs-simile]])
# like one who comforts mourners
This phrase means that Job actually was one who comforted people. AT: "I comforted them when they mourned" (See: [[rc://en/ta/man/translate/figs-explicit]])