The Indian piece of literature which contains the passages called the Bhagavad Gita is a) the Mahabharata. The Mahabharata is one of two Hindu epics written in Sanskrit and is considered to be very important. It details the story of the Kurukshetra War and the fate of two types of princes: Kaurava and Pandava.
They first appeared in Mesopotamia in 1900 but later they migrated into Egypt in around 1500 BC.
Hebrew was believed to be the soldiers of God.
As Hebrew migrated into Egypt after some period of origination in Mesopotamia hence they are originally from Mesopotamia though they settled themselves in Egypt in around 1500 BC.