Roma 2:28

2:28 For a person is not a Jew who is one outwardly, nor is circumcision something that is outward in the flesh,

Roma 9:31

9:31 but Israel even though pursuing ¹  a law of righteousness ²  did not attain it. ³ 

Roma 12:7

12:7 If it is service, he must serve; if it is teaching, he must teach;

[9:31]  ¹ tn Or “who pursued.” The participle could be taken adverbially or adjectivally.

[9:31]  ² tn Or “a legal righteousness,” that is, a righteousness based on law. This translation would treat the genitive δικαιοσύνης (dikaiosunh") as an attributed genitive (see ExSyn 89-91).

[9:31]  ³ tn Grk “has not attained unto the law.”