The Samaritans and the Jews were enemies, two tribes caught in an ancient argument about birthright and ethnicity who lived in segregated neighborhoods. By Jesus's time they were forbidden to have contact with each other, and violent squabbles sometimes erupted. The lawyer, who was a Jew, surely knew of both the informal customs and formal laws separating the two groups. Samaritans and Jews were not good neighbors. Yet Jesus turns the ancient Jewish command to love your neighbor into a story about these hostile groups. The man in the ditch, who is Jewish, is bypassed by those close to him by tribal ties (most likely the priest and the Levite were afraid the thieves were still about in the area and that they might be the next victim) and is eventually rescued by a Samaritan. Thus Jesus enlarges the sphere of neighborhood to include those we deem objectionable.