Luke

The author of the Gospel of Luke and Acts of the Apostles — who wrote the most literary and historically conscious of the Gospels, addressed to a Gentile audience, and whose parable of the Prodigal Son is the most psychologically profound of all Gospel narratives.

The parable of the Prodigal Son (Luke 15) is one of the most psychologically and theologically rich narratives in the Bible — the returning son, the waiting father's unconditional love, and the elder brother's resentment — encapsulating the tension between merit and grace that runs through all Christian theology.