Numbers 21:2-13

²But Israel binding himself by vow to the Lord, said: It thou wilt deliver this people into my hand, I will utterly destroy their cities.

³And the Lord heard the prayers of Israel, and delivered up the Chanaanite, and they cut them off and destroyed their cities: and they called the name of that place Horma, that is to say, Anathema.

⁴And they marched from mount Hor, by the way that leadeth to the Red Sea, to compass the land of Edom. And the people began to be weary of their journey and labour:

⁵And speaking against God and Moses, they said: Why didst thou bring us out of Egypt, to die in the wilderness? There is no bread, nor have we any waters: our soul now loatheth this very light food.

⁶Wherefore the Lord sent among the people fiery serpents, which bit them and killed many of them.

⁷Upon which they came to Moses, and said: We have sinned, because we have spoken against the Lord and thee: pray that he may take away these serpents from us. And Moses prayed for the people.

⁸And the Lord said to him: Make brazen serpent, and set it up for a sign: whosoever being struck shall look on it, shall live.

⁹Moses therefore made a brazen serpent, and set it up for a sign: which when they that were bitten looked upon, they were healed.

¹⁰And the children of Israel setting forwards camped in Oboth.

¹¹And departing thence they pitched their tents in Jeabarim, in the wilderness, that faceth Moab toward the east.

¹²And removing from thence, they came to the torrent Zared:

¹³Which they left and encamped over against Arnon, which is in the desert and standeth out on the borders of the Amorrhite. For Arnon is the border of Moab, dividing the Moabites and the Amorrhites.