Albert Barnes Commentary Ezekiel 33:21

"And it came to pass in the twelfth year of our captivity, in the tenth [month], in the fifth [day] of the month, that one that had escaped out of Jerusalem came unto me, saying, The city is smitten." — Ezekiel 33:21 (ASV)

The date shows an interval of 112 years from the taking of Jerusalem (Jeremiah 52:12). The general news that the city was taken must have reached them, but it was only when the messenger arrived that the prophet’s mouth was opened. It is not improbable that a group of men, after the destruction of the city, joined their brothers in Chaldaea; if so, this would account for the lapse of time and supply a reason why Ezekiel, on their arrival, should commence a new series of prophecies.