The phrase “people of the East” occurs often in the OT. It refers to inhabitants of the lands east of Palestine on the edge of the desert. Job was such a one (Job.1.3). The Magi came from the east and said they had seen the star of the King of the Jews in the east (Matt.2.1-Matt.2.2).——CEH

International Standard Bible Encyclopedia (1915)

(Zec 14:8).

See Dead Sea.