According to the Gospels, what is the unique literary genre Jesus employs to preach his message?

A “parable” is an illustrative story, by which a familiar idea is cast beside an unfamiliar idea in such a way that the comparison helps people to better understand and grasp the unfamiliar idea. A simple story is told, certain features of which are analogous or parallel to the points or principles one wishes to drive home. For example, a blind man tried to guide another blind man, and they both fell into the ditch. This illustrates that while a man leaves his own shortcomings uncorrected, he cannot help others to correct theirs (cf Luke 6:39).

The word “parable” comes from the Greek word παραβολη (parabolee). In the Greek, para means beside, and ballo means to cast or throw. So parable, in a very basic sense, means to cast beside. The word “parable”, has an underlying meaning to teach you right from wrong.