Dedan, and Tema, and Buz, and all that are in the utmost corners,
Dedan - North of Arabia (Genesis 25:3-4).
Tema and Buz - neighbouring tribes north of Arabia (Job 32:2).
And all that are in the utmost corners - rather, 'having the hair cut in angles,' a paganish custom (see note, Jeremiah 9:26).