Esias 23:15

15 And it shall come to pass in that day, Tyre shall be left seventy years, as the time of a king, as the time of a man: and it shall come to pass after seventy years, Tyre shall be as the song of a harlot.

Esias 23:15 In-Context

13 And to the land of the Chaldeans, this also is laid waste by the Assyrians, for her wall is fallen.
14 Howl, ye ships of Carthage: for your strong hold is destroyed.
15 And it shall come to pass in that day, Tyre shall be left seventy years, as the time of a king, as the time of a man: and it shall come to pass after seventy years, Tyre shall be as the song of a harlot.
16 Take a harp, go about, O city, thou harlot that hast been forgotten; play well on the harp, sing many , that thou mayest be remembered.
17 And it shall come to pass after the seventy years, God will visit Tyre, and she shall be again restored to her primitive state, and she shall be a mart for all the kingdoms of the world on the face of the earth.

The Brenton translation of the Septuagint is in the public domain.