32:19 He saw the calf, and the dancing, and his anger waxed hot - It is no breach of the law of meekness to shew our displeasure at wickedness. Those are angry and sin not, that are angry at sin only. Moses shewed himself angry, both by breaking the tables, and burning the calf, that he might by these expressions of a strong passion awaken the people to a sense of the greatness of their sin. He broke the tables before their eyes, as it is Deu 9:17, that the sight of it might fill them with confusion when they saw what blessings they had lost. The greatest sign of God's displeasure against any people is his taking his law from them.
32:15-20 What a change it is, to come down from the mount of communion with God, to converse with a wicked world. In God we see nothing but what is pure and pleasing; in the world nothing but what is sinful and provoking. That it might appear an idol is nothing in the world, Moses ground the calf to dust. Mixing this powder with their drink, signified that the backslider in heart should be filled with his own ways.
