Ahab asks this question to emphasize that he had spoken the truth about Micaiah. AT: "I told you ... but only disaster!" (See: [[rc://en/ta/man/translate/figs-rquestion]])
# on his right hand and on his left
This means that they were standing beside him on his left side and his right side. AT: "by his right side and by his left side" (See: [[rc://en/ta/man/translate/figs-idiom]])