Exodus 33:1-6

The LORD said to Moses, “Leave this place, you and the people you brought out of Egypt, and go to the land that I promised to give to Abraham, Isaac, and Jacob and to their descendants. I will send an angel to guide you, and I will drive out the Canaanites, the Amorites, the Hittites, the Perizzites, the Hivites, and the Jebusites. You are going to a rich and fertile land. But I will not go with you myself, because you are a stubborn people, and I might destroy you on the way.” When the people heard this, they began to mourn and did not wear jewellery any more. For the LORD had commanded Moses to say to them, “You are a stubborn people. If I were to go with you even for a moment, I would completely destroy you. Now take off your jewellery, and I will decide what to do with you.” So after they left Mount Sinai, the people of Israel no longer wore jewellery.