Here "brothers" represents other people of Israel. AT: "your people" (See: [[rc://en/ta/man/translate/figs-metaphor]])
# he made them an object of horror
The abstract noun "horror" can be expressed with the words "horrified" or "horrible." The author writes of what God did to their ancestors in terms of how other people would react when the saw what God did. AT: "he made them something that people would be horrified to see" or "he punished them horribly" (See: [[rc://en/ta/man/translate/figs-abstractnouns]] and [[rc://en/ta/man/translate/figs-metonymy]])