John Gills Exposition of the Bible Commentary - Isaiah 21:11
The burden of Dumah ,.... Whether this prophecy concerns the Edomites or Idumeans, or whether the Arabians, particularly the Dumean Arabians, is a question, since Dumah was a son of Ishmael, Genesis 25:14 and there was a place in Arabia called Dumatha F25 Vid. Hiller. Onomasticon Sacr. p. 797. ; and Aben Ezra and Kimchi interpret it here of Dumah the son of Ishmael; but inasmuch as mention is made of Seir, a mountain, which belonged to the Edomites, Genesis 36:8 and a distinct... read more
Matthew Henry's Complete Commentary - Isaiah 21:11-12
This prophecy concerning Dumah is very short, and withal dark and hard to be understood. Some think that Dumah is a part of Arabia, and that the inhabitants descended from Dumah the sixth son of Ishmael, as those of Kedar (Isa. 21:16, 17) from Ishmael's second son, Gen. 25:13, 14. Others, because Mount Seir is here mentioned, by Dumah understand Idumea, the country of the Edomites. Some of Israel's neighbours are certainly meant, and their distress is foretold, not only for warning to them to... read more