In the eleventh year, in the first month, in the seventh day - This was the eleventh year of the captivity of Jeconiah, and the date here answers to April 26, A.M. 3416; a prophecy anterior by several years to that already delivered. In collecting the writings of Ezekiel, more care was taken to put all that related to one subject together, than to attend to chronological arrangement.
Fourth prophecy against Egypt spoken three months before the capture of Jerusalem Ezekiel 26:1, and three months after the prophecy of Ezekiel 29:1. Meantime, Pharaoh-Hophra‘s attempt on Jerusalem had been foiled, and the Egyptians driven back into their own country (Jeremiah 37:5 note).
Ezekiel 30:21
I have broken - Especially by the defeat at Carchemish.
A roller - Or, a bandage.
Ezekiel 30:22
The strong - Such power as Egypt yet retained at home and abroad.
That which was broken - The power which Egypt aimed at ineffectually, the conquest of Palestine and Syria.