15 Moses turned around and came down from the mountain, carrying the two tablets of The Testimony. The tablets were written on both sides, front and back. 16 God made the tablets and God wrote the tablets - engraved them. 17 When Joshua heard the sound of the people shouting noisily, he said to Moses, "That's the sound of war in the camp!" 18 But Moses said, Those aren't songs of victory, And those aren't songs of defeat, I hear songs of people throwing a party. 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. 20 He took the calf that they had made, melted it down with fire, pulverized it to powder, then scattered it on the water and made the Israelites drink it.

Matthew Henry's Commentary on Exodus 32:15-20

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.