Yeung notes that up until the point where the Samaritan returns to give thanks, “only words that refer usually to physical healing are used.” Jesus then proceeds to use the term σέσωκέν to pronounce that his faith had healed and saved him.
19 καὶ εἶπεν αὐτῷ· ἀναστὰς πορεύου· ἡ πίστις σου σέσωκέν σε.
“When Jesus said that the Samiritan’s faith had saved him, he could not have meant mere physical healing or even the end of social aleination, as the other nine lepers would certainly have enjoyed these blessings after the priests pronounced them clean (cf. v.14). What the grateful Samaritan was entitled to would certainly be something more.”
Note – The Samaritan fell at Jesus’ feet. This anounts to worship.