Deuteronomy 1:4
After he had slain Sihon the king of the Amorites, which dwelt in Heshbon, and Og the king of Bashan, which dwelt at Astaroth in Edrei:
Cross-reference
In Deuteronomy 2:26-37, the defeat of Sihon is recounted in detail, expanding on the summary here.
In Deuteronomy 3:1-11, the defeat of Og is detailed, directly continuing the narrative.
Deuteronomy 4:46 recalls the same defeat of Sihon, placing it geographically in the land of Moab and reinforcing the historical context.
In Numbers 21:21-35, the original account of defeating Sihon and Og provides the source for this summary.
In Joshua 12:2-6, Sihon and Og are listed among conquered kings, confirming their defeat.
In Joshua 13:10-12, the territory of Sihon and Og is described in the land allotment.
In Nehemiah 9:22, the giving of the lands of Sihon and Og is recalled in Israel's confession.
In Psalm 135:11, Sihon and Og are named among defeated kings in praise to God.
In Psalm 136:19, Sihon king of the Amorites is mentioned in a litany of God's victories.
In Psalm 136:20, Og king of Bashan is listed, completing the pair from the same psalm.
Numbers 21:33 gives the full narrative of the battle with Og king of Bashan, filling in the details behind this summary of his defeat.
Joshua 9:10 shows the Gibeonites referencing the defeat of Sihon and Og, demonstrating how widely the news of these victories spread.
Joshua 12:4 lists Og of Bashan among the defeated kings, providing another record of the same conquest summarized here.
Joshua 21:27 records that cities from Og's territory were given to Levites, showing the inheritance that followed his defeat.
1 Chronicles 6:71 similarly lists Levitical cities from Og's territory, confirming the allocation of land from the defeated king.