World Wide Study Bible
a Bible passage
45 One of the lawyers answered him, “Teacher, when you say these things, you insult us too.”
44. appear not, &c.—As one might unconsciously walk over a grave concealed from view, and thus contract ceremonial defilement, so the plausible exterior of the Pharisees kept people from perceiving the pollution they contracted from coming in contact with such corrupt characters. (See Ps 5:9; Ro 3:13; a different illustration from Mt 23:27).