Nehemiah 12:11 - Matthew Poole's English Annotations on the Holy Bible

Generally supposed to be the same man who was high priest in the days of Alexander the Great, as Josephus mentions; whence a great difficulty ariseth, how Nehemiah could mention this man, who seems not to have been high priest till many years after Nehemiah's death. But it seems not necessary that this Jaddua should be the same person, for he might be the father of that Jaddua, both being called by the same name; or, if he were the same, the blessing of a very long life might be given to this great and excellent governor, as it was to Ezra, that famous scribe, as was noted on Nehemiah 12:1, and that for the very same reason. He might also live to see Jaddua, though not to see him high priest, which might be many years after. Or this passage might be put into this book by some sacred or inspired penman, there being some, though but few, such passages in the foregoing books of Scripture, which were added by succeeding men of God in after-times.