19 And that's what it was. When Moses came near to the camp and saw the calf and the people dancing, his anger flared. He threw down the tablets and smashed them to pieces at the foot of the mountain.

Matthew Henry's Commentary on Exodus 32:19

Commentary on Exodus 32:15-20

(Read Exodus 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.