Og was, according to the Hebrew Bible and other sources, an Amorite king of Bashan who was slain along with his army by Moses and his men at the battle of Edrei. In Arabic literature he is referred to
Og is depicted towering over groups of people in the manuscript painting Musa va 'Uj, c. 15th century
Some see Rujm el-Hiri, dating from the third Millennium BC in the Golan Heights, as a source for legends about "a remnant of the giants" for Og.
Illustration of Pantagruel for the Fourth Book in the Pantagruel and Gargantua series by François Rabelais published in Œuvres de Rabelais (Paris: Garnier Freres, 1873), vol. 2, Book IV, ch. XXVII, opposite page 87, Gustave Doré, 1873
The giant 'Uj ibn 'Unuq carries a mountain with which to kill Moses and his men.
In the Hebrew Bible, as well as non-Jewish ancient texts from the region, the Northwest Semitic term Rephaite, or Repha'im, refers to a people of greater-than-average height and stature in Deuteronomy
Og
…sleep on an iron bed, which was about 9 cubits in length. In Deuteronomy 3:11, and later in the book of Numbers and Joshua, Og is called the last of the Rephaim. Rephaim is a Hebrew word for giants. Deuteronomy 3:11 declares that his "bedstead" (translated in some texts as "sarcophagus") of iron is "nine cubits…
Musa va 'Uj, a 15th-century manuscript painting from Iran or Iraq, depicting the Rephaite Og.