Og is first mentioned on page 18 of September Mourning. The following are some interesting facts that Derrick Gilbert researched about Og’s bed.
….Bringing this back around to the conquest of Canaan: That’s why the kingdoms of Sihon of Heshbon and Og of Bashan were kherem. And that’s why Moses went out of his way to show his readers the connection between the Amorites of Babylon and the Amorites of the Promised Land.
How did he do that? Have you ever wondered why Moses bothered to include this little detail in his account of the victory over Og?
For only Og the king of Bashan was left of the remnant of the Rephaim. Behold, his bed was a bed of iron. Is it not in Rabbah of the Ammonites? Nine cubits was its length, and four cubits its breadth, according to the common cubit.
Deuteronomy 3:8-11 (ESV), emphasis added
Nine cubits by four cubits is thirteen-and-a-half feet by six feet! So Og was a giant, right? Well… No, not necessarily.
Yes, the Rephaim were linked to the Anakim, the descendants of the Nephilim. And tradition holds that Og was a really big dude. But that wasn’t the point here. Moses was writing to an audience that was familiar with the infamous occult practices of Babylon.
Every year at the first new moon after the spring equinox, Babylon held a new year festival called the akitu. It was a twelve-day celebration of the cycle of regeneration, the beginning of a new planting season, and it included a commemoration of Marduk’s victory over Tiamat. The entire celebration, from Yahweh’s perspective, was a long ritual for “new gods that had come recently” involving all manner of licentious behavior.
The highlight of the festival was the Divine Union or Sacred Marriage, where Marduk and his consort, Sarpanit, retired to the cult bed inside the Etemenanki, the House of the Foundation of Heaven and Earth, the great ziggurat of Babylon. Although scholars still debate whether the Sacred Marriage was actually performed by the king and a priestess, it didn’t matter to Yahweh. The idea that a bountiful harvest in the coming year depended on celebrating Marduk’s sacred roll in the sack was abhorrent.
Now, here’s the key point: Guess how big Marduk’s bed was?
“…nine cubits [its long] side, four cubits [its] front, the bed; the throne in front of the bed”.4
Nine cubits by four cubits. Precisely the same dimensions as the bed of Og. That is why Moses included that curious detail!