Deuteronomy 3:11
For only Og king of Bashan remained of the remnant of giants; behold, his bedstead was a bedstead of iron; is it not in Rabbath of the children of Ammon? nine cubits was the length thereof, and four cubits the breadth of it, after the cubit of a man.
Cross-reference
Deuteronomy 2:21 describes the Rephaim as tall like Anakim, the same giant race to which Og belonged—reinforcing their stature.
Genesis 14:5 mentions the Rephaim (giants) smitten in Ashteroth Karnaim, the same people group as Og, the last remnant.
2 Samuel 12:26 records Joab's capture of Rabbah, the same Ammonite city where Og's iron bed was kept.
Jeremiah 49:2 prophesies judgment on Rabbah of the Ammonites, the city mentioned in Deuteronomy as the location of Og's bed.
Ezekiel 21:20 also names Rabbath of the Ammonites as a target of the sword, the same city from Deuteronomy.
Joshua 12:4 also identifies Og as a remnant of the Rephaim, confirming the same giant lineage from the conquest account.
Joshua 13:12 directly echoes 'remnant of the Rephaim' and details Og's kingdom, reinforcing the same account.
Amos 2:9 recalls the Amorites’ great height like cedars, paralleling Og as a giant of the Rephaim whom God destroyed.
2 Samuel 21:16 describes a giant (son of Rephah), linking to the Rephaim remnant mentioned in the Og account.