Romans 2:6-8

2:6 He will reward each one according to his works: 2:7 eternal life to those who by perseverance in good works seek glory and honor and immortality, 2:8 but wrath and anger to those who live in selfish ambition and do not obey the truth but follow unrighteousness.

Romans 2:13

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.