Romans 1:14; Romans 3:9; Romans 10:12

14 I am debtor both to the Greeks, and to the Barbarians; both to the wise, and to the unwise.
9 What then? are we better than they? No, in no wise: for we have before proved both Jews and Gentiles, that they are all under sin;
12 For there is no difference between the Jew and the Greek: for the same Lord over all is rich unto all that call upon him.