Emporer Julian directed that Jerusalem and the Jewish Temple be rebuilt and that the Jews should return and worship in their homeland.
This is important because Emporer Julian reigned after Emporer Constantine both being a part of the 7th Global Kingdom on earth. The 7th Kingdom is also the current and on-going Kingdom in fact the Antichrist reigns as the final King of the 7th Kingdom.
The Antichrist as a King of the 7th Kingdom will seemingly confirm the previous Covenant of Emporer Julian and instruct the Jews to rebuild the Jewish Temple in Jerusalem.