'Frontiers' in the Bible

(The Bridegroom)“How fair and beautiful you are, my darling,How very beautiful!Your eyes behind your veil are like those of a dove;Your hair is like [the shimmering black fleece of] a flock of [Arabian] goatsThat have descended from Mount Gilead [beyond the Jordan].

Therefore, behold, I will open the side of Moab from the cities, from his cities which are on his frontiers, the glory of the country, Bethjeshimoth, Baalmeon, and Kiriathaim,