Romans 2:12-18
2:12 For all who have sinned apart from the law will also perish apart from the law, and all who have sinned under the law will be judged by the law.
2:13 For it is not those who hear the law who are righteous before God, but those who do the law will be declared righteous.
2:14 For whenever the Gentiles, who do not have the law, do by nature the things required by the law, these who do not have the law are a law to themselves.
2:15 They show that the work of the law is written in their hearts, as their conscience bears witness and their conflicting thoughts accuse or else defend them,
2:16 on the day when God will judge the secrets of human hearts, according to my gospel through Christ Jesus.
The Condemnation of the Jew
2:17 But if you call yourself a Jew and rely on the law and boast of your relationship to God
2:18 and know his will and approve the superior things because you receive instruction from the law,