Numbers 21:3-6

³The Lord responded to their appeal and handed over the Canaanites to them. The Israelites completely destroyed them and their towns, and named the place Hormah.

⁴The Israelites left Mount Hor by the road leading to the Red Sea so they could avoid traveling through the country of Edom. But the people became bad-tempered on the way

⁵and made complaints against God and against Moses, saying, “Why did you lead us out of Egypt to die in the desert? We don't have bread or water, and we hate this awful food!”

⁶So the Lord sent poisonous snakes to attack them, and many Israelites were bitten and died.