How does a person become righteous before God?

Righteousness before God cannot be achieved by human effort; it is granted through faith in Jesus Christ. He who knew no sin was made to be sin for us so that we might become the righteousness of God in Him. This radical exchange is at the heart of the gospel. In Ephesians, Paul emphasizes the blessings and spiritual riches we have in Christ, which include His righteousness. It is not about what we can do, but about wholly trusting in Christ's work on our behalf, understanding that our standing before God relies solely on His grace and righteousness.