Midrash su Giudici 8:24

The men saw that the women would not consent to give their earrings to their husbands. What did they do? Until that hour the earrings were (also) in their own ears, after the fashion of the Egyptians, and after the fashion of the Arabs. They broke off their earrings which were in their own ears, and they gave (them) to Aaron, as it is said, "And all the people brake off || the golden rings which were in their ears" (Ex. 32:3). "Which were in the ears of their wives" is not written here, but "which were in their ears." Aaron found among the earrings one plate of gold upon which the Holy Name was written, and engraven thereon was the figure of a calf, and that (plate) alone did he cast into the fiery furnace, as it is said, "So they gave it me: and I cast it into the fire, and there came out this calf" (Ex. 32:24). It is not written here, "And I cast them in," but "And I cast it in the fire, and there came out this calf." The calf came out lowing, and the Israelites saw it, and they went astray after it.