Romans 2:13-16

¹³for it is not the hearers of a law who are righteous before God, but the doers of a law will be accounted righteous;—

¹⁴for when the gentiles, who have no law, do by nature what is required by the Law, these, having no law, are a law to themselves;

¹⁵since they show that what the Law requireth is written in their hearts, their conscience bearing witness, and their thoughts in turn accusing or defending them;—

¹⁶in the day when God shall judge the secrets of men by Jesus Christ, according to the gospel which I have preached.