Fox in the Bible - a Christian perspective
Nehemiah faced many frustrations and setbacks when he was rebuilding the wall. In this verse we read of Tobiah's cynicism against the project. He says that if even a fox ran up that wall it would come down.
Samson, God's Strong Man
Samson is a Nazarite to God. The Philistines are afraid of his great strength. Delilah tricks him to reveal the source of his power. Samson's hair is cut off, and he is captured and put in prison. God gives him his strength one more time and he pushes 2 pillars down on himself and many Philistines.