Paul's writings in Romans constitutes the basis of Luther's theology of grace. Luther's reading of Romans is insufficient and needs to be supplemented by the bridge theory interpretation. I will defend the claim that both Luther's theology of grace and the bridge theory are linked together.
Luther's argues that the message of Romans is that the law is no longer required and that justification is through faith. In Romans 3:21-31 in states that all are saved through faith in Jesus Christ. Jesus Christ is part of a new covenant God created so that all people may participate and not just the Jews. The law, which only pertains to the Jews, is no longer needed, and this is stated several times throughout Romans, in Romans 3:28-30, 9:30-32, and 10:1-4. It is also stated in Romans that the law serves no function. This also means that the law is not a way to salvation. The law cannot serve as a covenant with God. Only faith in what God did through Christ will there be salvation.
The bridge theory links the Gentiles and the Jews. The Jewish part is important for Christians and the Christian part is equally important to the Jews. Jews are important to Christians because they are the recipients of God's love. Through Christ all people can be grafted into what Jews have with God. Christianity is a way for all to be apart of what the Jews have with God.
Judaism also needs Christianity to complete the bridge theory. The Jewish promise is only completed through the new covenant which is faith in Christ. Jesus Christ is also a way for Jews and Christians to testify who God is. Paul rejects the law in Romans, but links Judaism and Christianity together. Claiming that God never broke his promise with the Jews, just that God added another part to the covenant so that all may join in on what the Jews have with God.
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