2. Mose 32:20

He then proceeded to the destruction of the idol. "He burned it in (with) fire," by which process the wooden centre was calcined, and the golden coating either entirely or partially melted; and what was left by the fire he ground till it was fine, or, as it is expressed in Deu 9:21, he beat it to pieces, grinding it well (i.e., crushing it with and between stones), till it was as fine as dust. (Note: There is no necessity to refer to the process of calcining gold, either here or in connection with the destruction of the Asherah by Josiah (Kg2 23:4, Kg2 23:12; Ch2 34:4, Ch2 34:7), apart altogether from the question, whether this chemical mode of reducing the precious metals was known at all to Moses and the Israelites.) The dust, which consisted of particles of charcoal and gold, he then strewed upon the water," or, according to Deuteronomy, "threw it into the brook which flowed down from the mountain, and made the children of Israel drink," i.e., compelled them to drink the dust that had been thrown in along with the water of the brook. The object of this was certainly not to make them ashamed, by showing them the worthlessness of their god, and humiliating them by such treatment as compelling them to swallow their own god (as Knobel supposes). It was intended rather to set forth in a visible manner both the sin and its consequences. The sin was poured as it were into their bowels along with the water, as a symbolical sign that they would have to bear it and atone for it, just as a woman who was suspected of adultery was obliged to drink the curse-water (Num 5:24).

It is a very lamentable interruption which the story of this chapter gives to the record of the establishment of the church, and of religion among the Jews. Things went on admirably well towards that happy settlement: God had shown himself very favourable, and the people also had seemed to be pretty tractable. Moses had now almost completed his forty days upon the mount, and, we may suppose, was pleasing himself with the thoughts of the very joyful welcome he should have to the camp of Israel at his return, and the speedy setting up of the tabernacle among them. But, behold, the measures are broken, the sin of Israel turns away those good things from them, and puts a stop to the current of God's favours; the sin that did the mischief (would you think it?) was worshipping a golden calf. The marriage was ready to be solemnized between God and Israel, but Israel plays the harlot, and so the match is broken, and it will be no easy matter to piece it again. Here is, I. The sin of Israel, and of Aaron particularly, in making the golden calf for a god (Exo 32:1-4), and worshipping it (Exo 32:5, Exo 32:6). II. The notice which God gave of this to Moses, who was now in the mount with him (Exo 32:7, Exo 32:8), and the sentence of his wrath against them (Exo 32:9, Exo 32:10). III. The intercession which Moses immediately made for them in the mount (Exo 32:11-13), and the prevalency of that intercession (Exo 32:14). IV. His coming down from the mount, when he became an eye-witness of their idolatry (Exo 32:15-19), in abhorrence of which, and as an expression of just indignation, he broke the tables (Exo 32:19), and burnt the golden calf (Exo 32:20). V. The examination of Aaron about it (Exo 32:21-24). VI. Execution done upon the ring-leaders in the idolatry (Exo 32:25-29). VII. The…

32:20 Passing the gold powder of the image through the bodies of the people effectively rendered it unclean.