Exodus 32:35-33-6 is a jumbled mess. First, we’re told that God is going to plague the Israelites for worshiping the golden calf. Then, God rambles on and on about how he promised the Patriarchs land, how he freed the Israelites from Egypt, and all the genocide that he’s going to order on people already living in the Promised Land. However, the only plague that is mentioned seems to be having to listen to God drone on.
God again calls the Israelites a stiff-necked people and tells them that while his fire column will lead them to the Promised Land, he will not go with them. God explains to the Israelites that their shenanigans will no doubt make him destroy them all. Personally, I would say, “good riddance, I hope the door hits you on your way out,” but the Israelites get all depressed.
In fact, they get so depressed that they go into mourning and refuse to put on any flashy adornment. Then, God tell Moses to tell the Israelites that they are stiff-necked, and must take off their adornment lest he destroy them. Okay, that sounds remarkably like what was just said. So, the Israelites who are in mourning and not wearing any adornment, strip off the adornments they’re not wearing. Also, this part of Exodus calls the mountain by its earlier name, Horeb, rather than Sinai.
As you can see, we’re experiencing another duplicated story, which means we’re probably looking at a combination of two similar stories from two cultures. Duplicated stories are so common in the bible, that early textual critics even came up with a word for them, doublets.
You’ll also notice, reading the transition from chapter 32 to 33, an odd point of separation. Whomever numbered them wasn’t very good at his job.