Numbers 33 is a recap of the Israelites' journey from Egypt to the borders of Canaan. Each verse mentions a stop along that journey. Therefore, Numbers 33:21 simply means:
The Israelites moved from their campsite in Libnah and set up camp in a new location called Rissah.
The verse is part of a larger list of places where the Israelites stopped during their 40 years of wandering in the wilderness. The significance of this specific stop (Rissah) isn't elaborated upon in the text.
Numbers 33 is a recap of the Israelites' journey from Egypt to the borders of Canaan. Each verse mentions a stop along that journey. Therefore, Numbers 33:21 simply means:
The Israelites moved from their campsite in Libnah and set up camp in a new location called Rissah.
The verse is part of a larger list of places where the Israelites stopped during their 40 years of wandering in the wilderness. The significance of this specific stop (Rissah) isn't elaborated upon in the text.