The precious and matchless parable of the Prodigal Son belongs naturally to Luke. Its literary charm, its tender beauty, its deep human interest, its breadth of sympathy, its perfect picture of the grace and love of God, all are in peculiar accord with the purpose and genius of this Gospel.
The parable is linked with two others, the teachings of which it includes and completes: the parables of the Lost Sheep and of the Lost Coin. The occasion of all three parables was the censure passed by the Pharisees upon Jesus because of his association with social outcasts and his cordial welcome to penitent sinners. Jesus rebuked his enemies by showing that it is natural to rejoice in the recovery of a lost sheep or a lost coin or a lost son: much more, then, must God rejoice in the recovery of a lost soul. Evidently they who fail to share his joy must be out of sympathy and fellowship with him.
The first parable reveals the love of God in depicting his compassion for the distress and helplessness of the sinner. The second shows how precious a lost soul is in the sight of the loving God. Both of them picture his yearning and patient effort for the recovery of the sinner and his abounding joy in the restoration of the lost. The statement that “there shall be joy in heaven over one sinner that repenteth, more than over ninety and nine righteous persons, who need no repentance,” is not to be interpreted too literally. It does not mean that God finds more satisfaction in a repentant sinner than in a sinless saint. Jesus was here referring definitely to the penitent publicans and to the self-righteous Pharisees. God did not take delight in the sins of the former, nor did he regard the state of the latter as perfect, even taking the Pharisees at their best and regarding them as faithful to the laws of God. Whatever its motive, morality is always better than lawlessness and impurity. However, a repentant sinner who understands the grace and mercy of God is always more pleasing to him than the Pharisee, proud, critical, and unloving, however correct he may be in his moral behavior.
This truth is made more plain in the parable of the Prodigal Son. Here we have perfectly described the experience of the repentant sinner and also the unsympathetic attitude of the disdainful Pharisee. The first is represented in the story by the prodigal and the second by the conduct of his elder brother.