From the early Church Fathers to now.
“And when he shall come to his height, his kingdom shall be broken, and it shall be divided towards the four winds of the heaven: but not to his posterity, nor according to his power with which he ruled. For his kingdom shall be rent in pieces, even for strangers, beside these.”
“Understand this as referring to Alexander, who was certain that his last day was not close and therefore did not have children, who could be the heirs of his reign, and left it to his friends after dividing it into four parts.”
“When, as we have already mentioned, Alexander joined together the whole known world, so to speak, into his kingdom and then suffered the fate common to all humankind, the kingdom was divided into four parts.”
“He does not spend much time on the ruler of Asia Minor or Macedonia, especially since no grief befell the Jews through them. He mentions only the two through whom the Jews would be tested with grievous misfortunes. These are the king of Egypt and the one entrusted with the rule of the nations that lay to the east. The latter held palaces in both Antioch and Babylon.”
The in-app commentary runs from the Fathers to the early-modern record, then stops — that's where the public-domain sources end, not where the reading does. For the modern reading, follow the sources directly.