Exodus 33:4-6

4When the people heard this sad word, they mourned, and none of them put on his ornaments.

5For the Lord had said to Moses, “Say to the sons of Israel, ‘You are a stiff-necked (stubborn, rebellious) people! If I should come among you for one moment, I would destroy you. Now therefore, [penitently] take off your ornaments, so that I may know what to do with you.’ ”

6So the Israelites left off all their ornaments [in repentance], from Mount Horeb (Sinai) onward.