Here "no nation or kingdom" is an exaggeration that means that men have traveled very far and gone to many places to find Elijah. This can be expressed positively. Alternate translation: "my master has sent men to every nation and kingdom" or "my master has sent men to many nations and kingdoms" (See: [[rc://en/ta/man/jit/figs-hyperbole]] and [[rc://en/ta/man/jit/figs-doublenegatives]])