Numbers 21:3-6

³And Jehovah listened to the voice of Israel, and delivered up the Canaanites; and they utterly destroyed them, and their cities. And they called the name of the place Hormah.

⁴And they journeyed from mount Hor by the way of the Red sea, to go round the land of Edom; and the soul of the people became impatient on the way;

⁵and the people spoke against God, and against Moses, Why have ye brought us up out of Egypt that we should die in the wilderness? for there is no bread, and no water, and our soul loathes this light bread.

⁶Then Jehovah sent fiery serpents among the people, which bit the people; and much people of Israel died.