Joshua 13:13 confirms the Geshurites from 13:2 were not driven out, remaining among Israel.

Judges 3:1 lists the same nations left to test Israel, explaining why the land in Joshua 13:2 remained unconquered.

1 Samuel 27:8 records David raiding the southern Geshurites listed in Joshua 13:2, showing they persisted.

Exodus 23:29-31 promises gradual conquest and borders from the Red Sea to the Euphrates, the same land Joshua 13:2 lists as still remaining.

Deuteronomy 11:24 promises every place your foot treads will be yours, directly relating to the regions Joshua 13:2 says remain unpossessed.

Obadiah 1:19 prophesies Israel possessing Philistine land, echoing the territories of Joshua 13:2 yet to be conquered.