Numbers 21:5-7 World English Bible (WEB)
5 The people spoke against God and against Moses: “Why have you brought us up out of Egypt to die in the wilderness? For there is no bread, there is no water, and our soul loathes this disgusting food!”
6 Yahweh sent venomous snakes among the people, and they bit the people. Many people of Israel died. 7 The people came to Moses, and said, “We have sinned, because we have spoken against Yahweh and against you. Pray to Yahweh, that he take away the serpents from us.” Moses prayed for the people.