20. But the Lord hath taken you, and brought you forth out of the iron furnace—that is, furnace for smelting iron. A furnace of this kind is round, sometimes thirty feet deep, and requiring the highest intensity of heat. Such is the tremendous image chosen to represent the bondage and affliction of the Israelites [ROSENMULLER].

     6-10. For thou art an holy people unto the Lord thy God—that is, set apart to the service of God, or chosen to execute the important purposes of His providence. Their selection to this high destiny was neither on account of their numerical amount (for, till after the death of Joseph, they were but a handful of people); nor because of their extraordinary merits (for they had often pursued a most perverse and unworthy conduct); but it was in consequence of the covenant or promise made with their pious forefathers; and the motives that led to that special act were such as tended not only to vindicate God's wisdom, but to illustrate His glory in diffusing the best and most precious blessings to all mankind.

     8, 9. When the most High divided to the nations their inheritance—In the division of the earth, which Noah is believed to have made by divine direction (Ge 10:5; De 2:5-9; Ac 17:26, 27), Palestine was reserved by the wisdom and goodness of Heaven for the possession of His peculiar people and the display of the most stupendous wonders. The theater was small, but admirably suited for the convenient observation of the human race—at the junction of the two great continents of Asia and Africa, and almost within sight of Europe. From this spot as from a common center the report of God's wonderful works, the glad tidings of salvation through the obedience and sufferings of His own eternal Son, might be rapidly and easily wafted to every part of the globe.