Using symbolisms, God shows Ezekiel how to launch a siege against a rebellious Jerusalem (Ezekiel 4:1 - 4:17) - Bible Blender
God told Ezekiel to take a block of clay and inscribe the city of Jerusalem on it (creating a clay model of the city). Then Ezekiel was told to mimic a siege of the city – build siege ramps next to it, set up military camps around the city, and place battering rams next to the city walls.