That which makes the Gospel of Jesus Christ so appealing, so attractive and so irresistible to the sinner is not found in anything the sinner does or does not do. It's not found in any vain notion or idea of the sinner -making a choice or decision for Christ- But, that which makes the Gospel of Christ so attractive and so irresistible to the sinner is found solely in Christ loving and seeking sinners -Unconditionally and undeserving.- As shown in this parable

What leads Christ to proclaim these Parables in Luke chapter 15 is the accusation the Pharisees makes against Him in the second verse. The publicans and sinners drew nigh to hear Christ, but the Pharisees and scribes murmured about His receiving sinners and eating with them. Two very diverse reactions to Christ's preaching and teaching.