The Greek allogenēs (ἀλλογενής) means of another race or nation, foreign, or a foreigner — composed of allos (other) and genos (race, nation). In the New Testament it appears in the healing of the ten lepers, where the only one returning to give thanks was a Samaritan — a foreigner.
Jesus marvels that only the allogenēs, the foreigner, returned to give thanks (Luke 17:18). This foreignness becomes an occasion for extraordinary faith and gratitude. Paul declares that in Christ there is neither Jew nor Greek (Galatians 3:28). God's salvation transcends ethnic and national boundaries, making foreigners fellow citizens of God's household (Ephesians 2:19).