Jamieson, Fausset and Brown on Ezekiel 12:10

10. burden--that is, weighty oracle.

the prince--The very man Zedekiah, in whom they trust for safety, is to be the chief sufferer. Josephus [Antiquities, 10.7] reports that Ezekiel sent a copy of this prophecy to Zedekiah. As Jeremiah had sent a letter to the captives at the Chebar, which was the means of calling forth at first the agency of Ezekiel, so it was natural for Ezekiel to send a message to Jerusalem confirming the warnings of Jeremiah. The prince, however, fancying a contradiction between Eze 12:13; "he shall not see Babylon," and Jr 24:8, 9, declaring he should be carried to Babylon, believed neither. Seeming discrepancies in Scripture on deeper search prove to be hidden harmonies.