The parable of the lost sheep, the lost coin and the prodigal son in Luke 15 is told by the Lord Jesus Christ to illustrate the way that the triune God intervenes in the lives of lost men and women to bring them to a knowledge of himself. Kenneth good seeks to show that these parables, in revealing God's nature and the way he works in salvation, draw out important principles for evangelism - the only place in Scripture where this is done in a complete form. In a confusing age where 'anything goes' in evangelistic enterprises, can we afford to ignore Christ's teaching on this subject?