The parable of the Good Samaritan is a parable introduced by Jesus with the image of the shepherd and the sheep of Ezekiel 34 in mind.
The narrator, Jesus, draws an image of the fulfillment of the prophecy in Ezekiel 34:16 by using the word “καταδέω” in the parable of the Good Samaritan.
Therefore, the Good Samaritan who heals the robbed man represents the shepherd who heals the wounded sheep.
Luke, who understood Jesus’ intention, set up a literary device so that the metaphor of the Good Samaritan could be interpreted correctly.
Luke uses four chains of connection to link the parable of the Good Samaritan with the story of the raising of the dead son of the widow of Nain.
The first chain of connection chosen by Luke is the word “σπλαγχνίζομαι.”
The second chain of connection is a parallel phrase, “ἐσπλαγχνίσθη – καὶ προσελθὼν” (with pity and went to him), which reinforces the first chain of connection. The parallel phrase “ἐσπλαγχνίσθη – καὶ προσελθὼν”(esplagchnisthē kai proselthōn) is unique to Luke and is used twice in the Gospel of Luke in the New Testament.
The third chain of connection is in the pattern of using the parallel phrase “ἐσπλαγχνίσθη – καὶ προσελθὼν.” The parallel phrase takes on the form of a pattern as “source of action –> movement –> contact.”
The fourth chain of connection chosen by Luke is the image of “saving a life”.
See the book “Are you a robbed man?: Metaphor of Shepherd and Sheep: A New Approach to the Parable of the Good Samaritan”