Whereby they show both their madness upon their idols, and their base ingratitude to their God, who had transferred these jewels from the Egyptians to them, Exodus 12:35,36, which therefore God upbraids them with, Ezekiel 16:11, &c. In their ears, i.e. the men's ears, for the affix is of the masculine gender; whereby it seems the men were more set upon idolatry than the women, parting with their earrings for it, which the women would not do.
Related Commentaries of Exodus 32:3
Exodus 32:3
3 And all the people brake off the golden earrings which were in their ears, and brought them unto Aaron.