According to this book, Hebrew is the language of Heaven, and was originally spoken by all creatures in the Garden, animals and man; however, the animals lost their power of speech when Adam and Eve were expelled. Following the Deluge, the earth was apportioned into three divisions for the three sons of Noah, and his sixteen grandsons. After the destruction of the Tower of Babel, their families were scattered to their respective allotments, and Hebrew was forgotten, until Abraham was taught it by the angels.