World Wide Study Bible
a Bible passage
Let the desert and its towns lift up their voice,
the villages that Kedar inhabits;
let the inhabitants of Sela sing for joy,
let them shout from the tops of the mountains.
11. cities—in a region not wholly waste, but mainly so, with an oasis here and there.
rock—Sela, that is, Petra, the metropolis of Idumea and the Nabathœan Ishmaelites. Or it may refer in general to those in Arabia-Petræa, who had their dwellings cut out of the rock.
the mountains—namely, of Paran, south of Sinai, in Arabia-Petræa [Vitringa].