7The people came to Moses, and said, “We have sinned, because we have spoken against the LORD and against you. Pray to the LORD, that he take away the serpents from us.” Moses prayed for the people.
8The LORD said to Moses, “Make a venomous snake, and set it on a pole. It shall happen that everyone who is bitten, when he sees it, shall live.”
9Moses made a serpent of bronze, and set it on the pole. If a serpent had bitten any man, when he looked at the serpent of bronze, he lived.
10The children of Israel travelled, and encamped in Oboth.
11They travelled from Oboth, and encamped at Iyeabarim, in the wilderness which is before Moab, towards the sunrise.
12From there they travelled, and encamped in the valley of Zered.
13From there they travelled, and encamped on the other side of the Arnon, which is in the wilderness that comes out of the border of the Amorites; for the Arnon is the border of Moab, between Moab and the Amorites.
14Therefore it is said in The Book of the Wars of the LORD, “Vaheb in Suphah, the valleys of the Arnon,
Numbers 21
Numbers 21:7-14