What does the Bible say about the purpose of a walled city?

The concept of a walled city in the Bible signifies the importance of boundaries and safety for God's people. A walled city provides a clear demarcation of space, distinguishing between what is inside and what is outside, much like the separation between the church and the world. It illustrates that God's people are to be distinct, separate from the corruptive influence of sin and worldly practices. Furthermore, the walls serve to keep the inhabitants safe from enemies, acting as a physical barrier against attacks and ensuring the preservation of the community's integrity. This physical symbolism translates spiritually to the safety the church has in Christ, standing firm against the challenges of false teachings and external threats.