We ended chapter 11 with Ezekiel seeing a vision of Jerusalem. It wasn't a vision of the future, but it was a glimpse into what was happening there. Ezekiel was still in Babylon, but God showed him that even though the Babylonians came in to Jerusalem and took many of its citizens captive, the people were still hard-hearted and turned to other gods. This is important to remember, because God is going to have Ezekiel act out a few more scenarios; not for the Jews that had been captured and brought back to Babylon, but for the Jews that were still left in Jerusalem.
Chapter 12: God told Ezekiel to start packing some of his belongings. He wasn't to pack like he was going on vacation, or moving to a new place, but pack a few things like he was in a hurry to get away. He was to place these things out in his front yard for everyone to see. God knew that people passing by would start to wonder what was going on, and they did. Then God told Ezekiel to wait till evening came and bring your belongings in from the front yard. Then dig a hole through the front wall of your house and crawl through it carrying your belongings on your back. (these houses were made of clay and straw) So Ezekiel did just as the Lord had commanded, and the people came to see and try to figure out what Ezekiel was doing.
God said to Ezekiel, "When the people ask you what this means, tell them this is a sign that the remaining Jews in Jerusalem will be carried away in captivity, and the king will sneak out in the middle of the night by having a hole dug in in the wall and crawling through with his belongings. He will have guards and many of his men with him, but I will let the king be captured, and I will scatter his men. Many of them will die, but a few will survive so that they can come and bring to you the message that I have done exactly what I said I would do because I am the Lord."
In the next for chapters, God reminds the Jews, through Ezekiel, how they have turned their backs on Him. He mentions that they are following false prophets. These are the prophets that only tell them what they want to hear and not the truth about the coming judgement. God reminds them about how their leaders turned to false idols and led all in Judah to worship these idols as well. He reminded them of their unfaithful ness to Him and how, time and time again, they broke their promise to Him. God says that He has no choice, but to execute justice upon the Jews, and it will be soon.
Chapter 17: God told Ezekiel a riddle. It was the riddle of the 2 Eagles: