Romans 2:12-16 NIV

12 All who sin apart from the law will also perish apart from the law, and all who sin under the law1 will be judged by the law.

References for Romans 2:12

13 For it is not those who hear the law who are righteous in God's sight, but it is those who obey2 the law who will be declared righteous.

References for Romans 2:13

14 (Indeed, when Gentiles, who do not have the law, do by nature things required by the law,3 they are a law for themselves, even though they do not have the law,

References for Romans 2:14

15 since they show that the requirements of the law are written on their hearts, their consciences also bearing witness, and their thoughts now accusing, now even defending them.)
16 This will take place on the day when God will judge men's secrets4 through Jesus Christ,5 as my gospel6 declares.

References for Romans 2:16