RobH_en_tn/job/12/20.md

He removes the speech of those who had been trusted

Removing their speech represents making them unable to speak. Alternate translation: "He makes those who were trusted unable to speak" or "He silences people whom others trusted" (See: rc://en/ta/man/translate/figs-metonymy)

takes away the understanding of the elders

Taking away their understanding represents making them unable to understand or make good decisions. Alternate translation: "makes the elders unable to understand" or "makes the elders unable to make good decisions" (See: rc://en/ta/man/translate/figs-metonymy)

the elders

Possible meanings are 1) the older people or 2) the leaders.