Deuteronomy 3:5
All these cities were fenced with high walls, gates, and bars; beside unwalled towns a great many.
Cross-references
Deuteronomy 1:28
Contrast
Deuteronomy 1:28 describes similar fortified cities with high walls that scared the spies; here such cities were conquered.
Numbers 13:28
Contrast
Numbers 13:28 also describes fortified cities, but as a report of fear, contrasting with the victorious conquest here.