Definition: The "cebafirewall" in the Bible refers to a system used by Israelites during their exile from Egypt. It was built by God's servant Joseph and functioned as a barrier, providing protection against invading forces while keeping the people secure. The walls were made of mud-brick, iron, and wood, and they had to be reinforced every few years. They were placed around the temple complex, along the borders of Israel, and along the roads leading outwards from there. The term "cebafirewall" is a reference to their physical structures as well as their protection mechanism.