6So the LORD sent venomous snakes among the people, and many of the Israelites were bitten and died.
7Then the people came to Moses and said, “We have sinned by speaking against the LORD and against you. Intercede with the LORD so He will take the snakes away from us.” So Moses interceded for the people.
8Then the LORD said to Moses, “Make a fiery serpent and mount it on a pole. When anyone who is bitten looks at it, he will live.”
9So Moses made a bronze snake and mounted it on a pole. If anyone who was bitten looked at the bronze snake, he would live.
— Numbers 21:6-9