the gentile Christians—which involves a multi-purpose effect among different people groups (see 15:14–24; e.g., Macedonians and Greeks, the Christian poor in Jerusalem, Christians in Jerusalem, the Roman believers, the Jews in Jerusalem, and the unreached in Spain). Paul makes it clear early in his letter that his aim depends on working together in humility and faith, 1:12, 17, and since the Roman believers’ faith is being proclaimed throughout the known world, it is important that their faith grow