Body language.

According to Genesis, all people before the Flood had the same language - which was then passed down to the descendants of Noah's son Shem, the Israelites. So, as far as a literal interpretation of the Book of Genesis, Hebrew is the first language.

A very interesting question! The story of Adam and Eve predates the Christian religion by a few thousand years. Many of the stories from the Old Testament were adapted from older texts. Ancient Hebrew or Aramaic are the possible languages spoken by Adam and Eve.

<<<According to Islam belief, Adam was on Heaven before go down to "world" for punishment. While Adam was on Heaven, He used to speak in Arabic..People those are going to go Heaven will speak in Arabic..As a result, Adam used to speak in Arabic.. P.S: I'm from Turkey and I shared this information in accordance with Islam beliefs.

According to Islam belief, Adam was on Heaven before go down to "world" for punishment. While Adam was on Heaven, He used to speak in Arabic..People those are going to go Heaven will speak in Arabic..As a result, Adam used to speak in Arabic.. P.S: I'm from Turkey and I shared this information in accordance with Islam beliefs.