Isaiah 65 unusually combines dwelling among graves with eating swine’s flesh. Luke’s Gerasene scene likewise clusters tombs and pigs in an unclean setting. The verbal-conceptual overlap is striking but too uncertain to call an intentional fulfillment.

The release of a violently oppressed man into sanity, clothing and community fits the liberation horizon Jesus announced from Isaiah 61 in Luke 4. Luke 8 does not quote Isaiah 61 here, so this is mission development rather than direct fulfillment language.

Torah classifies pigs as unclean for Israel. Their presence helps locate the story in a culturally non-Jewish or mixed setting, but Luke does not say the pigs symbolize demons or that their destruction is a lesson about dietary law.