This is what you shall do to them to [ceremonially] cleanse them: sprinkle the water of purification on them, and let them use a razor over their whole body and wash their clothes, and they will be clean.

So Moses made a serpent of bronze and put it on the pole, and it happened that if a serpent had bitten any man, when he looked to the bronze serpent, he lived.

So Moses brought their case before the Lord.