46. south . . . south . . . south--three different Hebrew words, to express the certainty of the divine displeasure resting on the region specified. The third term is from a root meaning "dry," referring to the sun's heat in the south; representing the burning judgments of God on the southern parts of Judea, of which Jerusalem was the capital.
      set thy face--determinately. The prophets used to turn themselves towards those who were to be the subjects of their prophecies.
      drop--as the rain, which flows in a continuous stream, sometimes gently (De 32:2), sometimes violently (Am 7:16; Mic 2:6, Margin), as here.
      forest--the densely populated country of Judea; trees representing people.

JFB.