Isaiah 23:15

seventy years. See Jeremiah 25:9; Jeremiah 27:2. From the first year of Nebuchadnezzar (496 B.C.) to the conquest of Babylon by Cyrus (426 B.C.)

one. Hebrew. ehad,. compound unity, hence "one" of. dynasty, here, the Babylonian dynasty. Not yahid,. single one. See note on Deuteronomy 6:4.