What does Jericho represent in the Bible?

In the context of the sermon, Jericho represents humanity itself—shut off from God by sin, as indicated by its walls. It serves as an illustration of the natural man's innate rebellion against God, wanting self-sovereignty rather than acknowledging His authority. The fall of Jericho serves as a prominent reminder that, much like the city, mankind is closed off from divine grace without God's sovereign intervention. Rahab's salvation amidst the destruction of Jericho emphasizes the grace of God reaching even the most unlikely individuals, symbolizing hope for all who believe in Him.