Exodus 33:5-6

33:5 For the LORD had said unto Moses, Say unto the children of Israel, Ye [are] a stiffnecked people: I will come up into the midst of thee in a moment, and consume thee: therefore now put off thy ornaments from thee, that I may know what to do unto thee. 33:6 And the children of Israel stripped themselves of their ornaments by the mount Horeb.