Pastor David Deutsch preaches in Luke 15:1-10, highlighting how Jesus disrupts traditional purity laws by associating with sinners, showing that His holiness is contagious and reverses the old belief that impurity corrupts purity. The parables of the lost sheep and lost coin emphasize that salvation is entirely God's work—repentance is not what saves, but a response to being found by Jesus, who joyfully carries the lost home and honors them at His table.