Nehemiah 4:2-3

2and in the presence of his colleagues and the army of Samaria he said, “What are these feeble Jews doing? Will they be left to themselves? Will they again offer sacrifice? Will they finish this in a day? Can they bring these burnt stones to life again from piles of dust?”

3Then Tobiah the Ammonite, who was close by, said, “If even a fox were to climb up on what they are building, it would break down their wall of stones!”