Luke 17:15,16

One of them ... - This man, sensible of the power of God and grateful for his mercies, returned to express his gratitude to God for his goodness. Instead of obeying “at once” the “letter” of the command, he “first” expressed his thanks to God and to his Great Benefactor. There is no evidence, however, that he did not, “after” he had given thanks to God, and had poured out his joy at the feet of Jesus, go to the priest as he was directed; indeed, he could not have been restored to society without doing it; but he “first” poured out his thanks to God, and gave him praise for his wonderful recovery. The first duty of sinners, after they have been forgiven and have the hope of eternal life, is to prostrate themselves at the feet of their Great Benefactor, and to consecrate themselves to his service. “Then” let them go and show to others the evidence that they are cleansed. Let them go and mingle, like a restored leper, with their families and friends, and show by the purity and holiness of their lives how great is the mercy that has cleansed them.

He was a Samaritan - See the notes at Matthew 10:5. This rendered his conduct more remarkable and striking in the sight of the Jews. “They” considered the Samaritans as especially wicked, and “themselves” as especially holy. This example showed them, like the parable of the good Samaritan, that in this they were mistaken: and one design of this seems to have been to break down the “opposition” between the Jews and Samaritans, and to bring the former to more charitable judgments respecting the latter.