Synopsis of the Books of the Bible, by John Nelson Darby, [1857-62], at sacred-texts.com
The following commentary covers Chapters 44 and 45.
Jehovah now reasons with His people whom He had formed from the womb, encourages them, promises them His Spirit. Their children shall spring up as willows by the water-courses. They shall be witnesses for Him, Jehovah, the King of Israel, and their Redeemer. He shews Israel the folly of idolatry, reminds him that he is Jehovah's servant, and that He will not forget them, and assures them of the entire pardon of all their sins: even Jehovah, who is the disposer of all things, and who calls Cyrus by name to rebuild Jerusalem. Chapter 45 enlarges upon the same subjects, dwelling on the deliverance of Israel as an everlasting deliverance, the result of which shall never be overthrown.