Romans 4:3 quotes Genesis 15:6 about faith credited—Romans 4:9 builds on that same quote to argue for uncircumcised.

Romans 4:6 introduces David's blessing of righteousness apart from works, which Romans 4:9 then applies to circumcised and uncircumcised.

Romans 3:29 asks if God is only for Jews, mirroring 4:9's question about circumcision.

Romans 3:30 states God justifies both by faith, supporting 4:9's inclusive blessing.

Romans 9:24 explicitly says called from both Jews and Gentiles, confirming 4:9's point.

Romans 10:12 says no difference between Jew and Gentile, echoing 4:9's inclusive question.

Romans 15:8-19 explains Christ's ministry to confirm promises and include Gentiles, fulfilling 4:9's theme.

Romans 9:30 declares that Gentiles obtained righteousness by faith, directly echoing the blessing for the uncircumcised in Romans 4:9.

Romans 2:9 pronounces judgment on both Jew and Gentile, contrasting with the blessing for both by faith in Romans 4:9.

Colossians 3:11 states no distinction between circumcised and uncircumcised in Christ—mirrors Romans 4:9's point directly.

Ephesians 2:11-13 describes Gentiles' former exclusion and now inclusion—reinforcing that blessing comes through faith, not circumcision.

Galatians 3:26-28 erases ethnic divisions in Christ—directly supporting Paul's point that circumcision isn't necessary for blessing.

Galatians 3:14 explicitly says the blessing of Abraham comes to Gentiles through faith—same theme as Romans 4:9.

Luke 2:32 declares Jesus as light for Gentiles—parallel to Paul's argument that Abraham's blessing extends beyond circumcision.

Isaiah 49:6 prophesies salvation to Gentiles as a light, supporting Paul’s argument here that the blessing of Abraham extends beyond circumcision.

Galatians 3:6 restates Abraham's faith being credited as righteousness, the same principle that Romans 4:9 extends to both groups.

Genesis 17:10 institutes circumcision as a covenant sign—Paul contrasts this with Abraham's earlier faith-based righteousness.

Genesis 15:6 is the foundational text Paul quotes—Abraham's faith credited before circumcision, supporting blessing for uncircumcised.

Ephesians 3:8 shows Paul's specific mission to preach to Gentiles—connecting to the argument that blessing is for uncircumcised as well.