Numbers 21:9

21:9 Moses made a serpent of brass, and set it on the standard: and it happened, that if a serpent had bitten any man, when he looked to the serpent of brass, he lived.
-World English Bible

Other Translation

21:9 And Moses made a serpent of brass, and put it upon a pole, and it came to pass, that if a serpent had bitten any man, when he beheld the serpent of brass, he lived.
-King James Version