Joshua 2:7 describes the gate being shut after the spies' escape — the same sealed condition of Jericho mentioned here in Joshua 6:1.

Joshua 2:9-14 records Rahab's faith and pact with the spies — the background narrative leading to the sealed city in Joshua 6:1.

Joshua 2:24 reports that Jericho's inhabitants melt in fear, explaining why the city is tightly shut up in 6:1.

Joshua 2:1 describes the sending of spies to Jericho, which sets up the siege situation in 6:1.

Joshua 24:11 recaps the battle of Jericho, directly referring to the same event as 6:1.

Joshua 9:3 shows Gibeon reacting to Jericho's fall, referencing the same event from a later perspective.