In perek 21 we have a number of prophecies which are difficult to understand, and the connection between them is unclear as well. The perek opens with the fire which will burn in the forest of the Negev (1-5) and proceeds to a prophecy about the sword which will come to the Land of Israel and Jerusalem (6-12). The next prophecy continues the description of the sword which symbolizes the Babylonian army, which will cut from the North to the South (23-32). The perek ends with taking vengeance on Israel's enemies who are happy at their misfortune- Bnei Ammon. This ending parallels the beginning of the perek giving a description of the sword and fire which will finish off Bnei Ammon (33-37).

Along with the approaching destruction, comes the trial during which Jerusalem will be judged for all of its sins from time immemorial. Perek 22 is a harsh indictment against Jerusalem. It is divided into three parts: the first part (1-16) includes a detailed list of Jerusalem's different sins. The second part (17-22) describes the punishment- the destruction of the city - using imagery of silver smelting in a forge. In the third part (23-31) there is another detailed list of the sinners and sins committed in the city. 

Yehezkel's Prophetic Parables
Courtesy of Matan Al HaPerek, Directed by Dr. Navah Cohen