Numbers 21:8-10 Revised Standard Version Catholic Edition (RSVCE)
8 And the Lord said to Moses, “Make a fiery serpent, and set it on a pole; and every one who is bitten, when he sees it, shall live.” 9 So Moses made a bronze serpent, and set it on a pole; and if a serpent bit any man, he would look at the bronze serpent and live.[a]
The Journey to Moab
10 And the people of Israel set out, and encamped in Oboth.