Luke 17:12

So likewise ye, when ye shall have done all those things which are commanded you, say, We are unprofitable servants: we have done that which was our duty to do.

And it came to pass, as he went to Jerusalem, that he passed through the midst of Samaria and Galilee.

And they lifted up their voices, and said, Jesus, Master, have mercy on us.

And when he saw them, he said unto them, Go shew yourselves unto the priests. And it came to pass, that, as they went, they were cleansed.