v1-2: See Jer 52.4, the beginning of Nebuchadnezzar's siege against Jerusalem. The ninth year is the ninth year of the reign of Zedekiah. This was no accident of history and politics, but the judgment of God on a rebellious people.
v3-5: Jerusalem, the pot full of meat, put on the fir to simmer. Another striking parable, echoing the language of chapter 11.
v6-8: The pot was left to simmer, boiling away the water, and burning the meat. The pot was now "encrusted," with the deposit of burned meat stuck on. The people were unwilling to repent, and to forsake their sins, see 22.17-31.
Jerusalem's guilt remained, the evidence of her sins remained. When a Jew slaughtered an animal, its blood ran on the ground, and was covered by the dust. But here, the blood lay on a rock, remaining as a testimony to their guilt.
v9-12: The pot left to be burned; picturing the punishment sent by the Lord. This time the meat is roasted on an open fire, rather than being boiled in a pot; either way, there is no cleansing. Jerusalem resisted the purifying works of the Lord.
v13-14: Again, leaving the parable, the Lord speaks directly of their failure to be cleansed, or purged. These verses explicitly interpret the parable, giving its meaning.
v15-18: Ezekiel's costly ministry. God took away "with one blow" his wife, the desire of his eyes. His ministry had to continue uninterrupted, with no opportunity for mourning.
v19-24: The application of the incident, as the people came to Ezekiel, asking the meaning of his actions. He is made a sign to Israel (compare Is 8.18). What happened to him would be fulfilled in the people.
The people trusted in the temple, 1 Sam 4.5; Jer 7.4, this was the stronghold of their pride, the delight of their eyes, the object of their affection. But theirs was a false security, since they lacked faith in God.
v25-27: A messenger was to come from Jerusalem to Babylon, bringing the message of the city's fall.
Ezekiel spoke no more words to Israel until news reached him of Jerusalem's fall, in 33.21-22. During this period, Ezekiel spoke messages for other nations.