Numbers 21:6
Then the Lord sent fiery serpents among the people, and they bit the people, so that many people of Israel died.
Matthew 10:16
"Behold, I am sending you out as sheep in the midst of wolves, so be wise as serpents and innocent as doves.
Genesis 3:1
Now the serpent was more crafty than any other beast of the field that the Lord God had made. He said to the woman, "Did God actually say, 'You shall not eat of any tree in the garden'?"