In Romans 15:8-13, the Apostle Paul stresses the fact of Jesus' servitude to the Jews, as well as the Gentiles. The purpose was to not only reveal the truth of God in a real, tangible way, but to, as Paul wrote, "confirm the promises given to the patriarchs" and "that the Gentiles might glorify God for his mercy." Paul then resorts to showing from the Law, Writings, and the Prophets how the Gentiles were now a part of God's chosen people, alongside those ethnic Jews that were redeemed by the same principle of faith, through grace. Ultimately, such conversion on the part of God should instill joy and peace, through the Spirit of God, as the believer abounds in a hope that he/she otherwise was without prior to God's grace act of redemption through Jesus Christ.