Charles Ellicott Commentary Luke 17:18

"Were there none found that returned to give glory to God, save this stranger?" — Luke 17:18 (ASV)

Save this stranger.—The word for “stranger” means literally, a man of another race, an alien. It is not found elsewhere in the New Testament, but is used in the LXX. of Isaiah 56:3. It was probably a term of contempt in common use among the Jews. (Compare the kindred word aliens, with special reference to the Philistines, in Hebrews 11:34, and one of another nation in Acts 10:28.) It implied, as did the whole treatment of the Samaritans by the Jews, that the former were not recognised as being, in any sense, children of Abraham.