Colonies were cities into which Roman soldiers or veterans were accommodated, transplanted from the capital to form Roman outposts amid possibly hostile territory. Corinth, Lystra, and Antioch of Pisidia were colonies; their constitutions were modelled on those of Rome. In writing to the Church at Philippi which was a colony (Acts 16: 12) Paul tells the Christians that their true citizenship is of heaven though they live temporarily in an earthly outpost (Phil. 3: 20).