Chapter 5 told of the experiences of the people inside the city of Jerusalem. Now Ezekiel was telling of the coming utter destruction of the high places of false worship outside the city and throughout Judah. A thorough housecleaning of the nation was coming. All cities, not just Jerusalem, would be laid waste. At the end of the age, in our day, there will be a similar judgment and destruction of everything outward to do with false religion. Prominent religious edifices, both Catholic and Protestant, will be looted and despoiled. Mystic Babylon will fall with violence.
In review, the time setting is about 612 BC, that is, shortly before the desolation of 606 BC. From captivity in Babylon, Ezekiel was told to prophesy about the coming destruction. When God said, “Son of man, set thy face toward the mountains of Israel, and prophesy against them,” Ezekiel literally turned and pointed his face toward Israel and Jerusalem and then foretold the coming doom. Since he had been providentially struck with dumbness, the Lord now loosened his tongue so that the people could hear these important utterances.