Deuteronomy 32:13

He made him ride on the high places To conquer their strongest holds on the mountains, and their cities fenced with walls of the greatest height and strength: to ride upon being, in the phraseology of Scripture, to subdue and conquer. Or, he put him in possession of a country full of lofty and fruitful mountains, and therefore called the high places of the earth. To suck honey out of the rock Placed him in a country where honey flowed from the very rocks, the bees making it in the holes thereof, or in the hollow trees that grew upon or among the rocks. Oil out of the flinty rocks Olive-trees growing and bearing fruit best in rocky or hilly places. The expressions are proverbial, and denote a most fertile land.