Church Fathers on Luke 17:15

After speaking the foregoing parable, our Lord censures the ungrateful; TITUS BOST. saying, And it came to pass, showing that the Samaritans were indeed well disposed towards the mercies above mentioned, but the Jews not so. For there was enmity between the Jews and the Samaritans, and He to allay this, passed into the midst of both nations, that he might cement both into one new man.

The Savior next manifests His glory by drawing over Israel to the faith. As it follows, And as he entered into a certain village, there met him ten men that were lepers, men who were banished from the towns and cities, and counted unclean, according to the rites of the Mosaic law.

They associated together from the sympathy they felt as partakers of the same calamity, and were waiting till Jesus passed, anxiously looking out to see Him approach. As it is said, Which stood afar off, for the Jewish law esteems leprosy unclean, whereas the law of the Gospel calls unclean not the outward, but the inward leprosy.