King David's authority reached as far as the Euphrates River in the north, all the way down to the Gulf of Aqaba and the River of Egypt (45 miles southwest of Gaza). It is disputed whether or not this or the Nile River is the River of Egypt mentioned in the Lord's promise to their ancestor Abraham and their descendants over 800 years earlier.
"On the same day the LORD made a covenant with Abram, saying: "To your descendants I have given this land, from the river of Egypt to the great river, the River Euphrates…"
Israel was not to be compared to the mighty empires of the ancient world like Egypt, Assyria, Babylon, Media-Persia, Greece or Rome, but David was undoubtedly the strongest ruler of his day.
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