Both employ the same 'left no survivors' formula; verse 39 summarizes the pattern that verse 33 exemplifies with Gezer's king.

Joshua 12:12 lists the king of Gezer among the defeated kings, confirming this victory in a summary list.

Joshua 16:10 notes Canaanites still lived in Gezer despite the king's defeat, contrasting the total victory here.

Joshua 21:21 assigns Gezer as a Levitical city, showing its later integration into Israel after the conquest.

1 Chronicles 6:67 also lists Gezer as a Levitical city, parallel to Joshua 21:21, showing its priestly allocation.

Judges 1:29 repeats that Ephraim did not drive out the Canaanites from Gezer, echoing the failure after the king's defeat.