What does Jericho represent in the context of grace?

In the sermon, Jericho is depicted as a representation of the old covenant, characterized by law and restrictions. The tightly shut walls signify the limitations that the law imposes on people. Rahab, who lived within the wall, symbolizes a genuine believer who sees beyond the forms of the old covenant to the promise of salvation through faith. When the Israelite army, under Joshua, followed God's command and shouted, the walls fell—illustrating that the old covenant's restrictions are overcome by the grace found in Christ. This shift emphasizes that salvation is no longer based on adherence to the law but through faith and the gospel, liberating believers from the curse of the law (Galatians 3:13).