What does the parable of the Pharisee and the publican teach us about self-righteousness?

In Luke 18:9-14, the Pharisee represents self-righteousness, boasting about his works and comparing himself to others. This attitude demonstrates a lack of understanding of true righteousness, which is not based on personal merit but on God's grace. Jesus contrasts this with the publican, who humbly acknowledges his sin and asks for mercy. The lesson is profound: self-righteousness blinds us to our need for salvation, while humility opens our hearts to God's mercy and justification. Only through recognizing our shortcomings can we fully receive the gift of grace that Christ offers.