Sforno on Numbers 13:27/ספורנו על במדבר י״ג:כ״ז

1וגם זבת חלב ודבש היא; not only is it a good land, but it deserves the superlative “a land flowing with milk and honey.” The land yields its bounty without man having to engage in backbreaking labour. It produces abundantly in all areas of agriculture and cattle breeding.