Departing Paradise

Departing Paradise is the final quest

Detailed walkthrough
This quest is activated once the main questline of Honest Hearts has been completed. After completing either Flight from Zion or Crush the White Legs, the Courier will end up in front of the Southern Passage. There is a footlocker in front of the passageway that contains the following items:
 * A Light Shining in Darkness
 * Joshua Graham's armor
 * Daniel's outfit and hat
 * Salt-Upon-Wounds' power fist and helmet
 * Chalk's headdress
 * Scripture

Once the Courier takes the items from the footlocker (or not), they walk into the southern passage and travel to the Northern Passage to complete this quest.