The fox is known for its slyness and cunning.
They live in holes or dens as it says in Matthew 8:20 Jesus replied, "Foxes have dens and birds have nests, but the Son of Man has no place to lay his head." (See also Luke 9:58 NIV)
Ezekiel 13:4 "O Israel, thy prophets are like the foxes in the deserts." Here the fox is mentioned in connection with false prophets.
Nehemiah 4:3 "Now Tobiah the Ammonite was by him, and he said, Even that which they build, if a fox go up, he shall even break down their stone wall."