How does the concept of justification apply to sinners?

The doctrine of justification is central to the gospel and indicates that sinners are declared righteous before God not on the basis of their works but through faith in Jesus Christ. In the parable of the Pharisee and the tax collector (Luke 18:9-14), it is the tax collector who, acknowledging his sinfulness, goes home justified. This illustrates that justification is a transformative act of God wherein He credits righteousness to those who believe in Christ, removing their guilt and shame. Sinners must recognize that this status is not achieved by moral effort or religious observation but is a gift of grace bestowed upon those who trust in Christ's perfect work, underscoring the essence of salvation that is entirely based on faith.