Exodus 33:4 WEB

²  I will send an angel before you; and I will drive out the Canaanite, the Amorite, and the Hittite, and the Perizzite, the Hivite, and the Jebusite:

³  to a land flowing with milk and honey: for I will not go up in the midst of you, for you are a stiff-necked people, lest I consume you in the way.'

⁴  When the people heard this evil news, they mourned: and no one put on his jewelry.

⁵  Yahweh said to Moses, 'Tell the children of Israel, 'You are a stiff-necked people. If I were to go up into your midst for one moment, I would consume you. Therefore now take off your jewelry from you, that I may know what to do to you.'

⁶  The children of Israel stripped themselves of their jewelry from Mount Horeb onward.