Luke 10:29 - Ellicott's Commentary On The Whole Bible

But he, willing to justify himself... — The question implied a conscience half-awakened and uneasy. It is characteristic that no doubt seems to cross his mind as to his love of God. There he felt that he was safe. But there were misgivings as to the second commandment, and, as if feeling that there had been a tone of rebuke in our Lord’s answer, he vindicates himself by asking the question, “Who is my neighbour?” No one, he thinks, could accuse him of neglecting his duties to those who lived in the same village, attended the same synagogue, who were Pharisees like himself, or even Israelites.