Ahab asks this question to emphasize that they should have already recaptured Ramoth Gilead. AT: "Ramoth Gilead is ours, but we have done nothing yet to take it from the hand of the king of Aram." (See: [[rc://en/ta/man/translate/figs-rquestion]])
Jehoshaphat tells Ahab that he, his people, and his horses belong to Ahab, meaning that Ahab can command them as he pleases. AT: "I, my soldiers, and my horses are yours to use in any way you want" (See: [[rc://en/ta/man/translate/figs-idiom]])