A person is not justified by works of the law but through faith in Jesus Christ. Paul formulates the central insight of the New Covenant: faith, not law. Trust, not performance.
Clarity means: you do not have to guess how to become righteous. The answer is clear: through faith. Not through religious practice, not through moral effort. Through trust in what Jesus has done.
Today: think clearly. Righteousness comes through faith. Everything else is fog.