The phrase "These ten times" refers to the way that the friends have completely insulted Job. Alternate translation: "You have completely insulted me" or "You have insulted me many times" (See: [[rc://en/ta/man/jit/figs-idiom]])
Job is rebuking them for this. This can be written in positive form. Alternate translation: "You should be ashamed that you have treated me so harshly"