Thematic Bible: The testimony of conscience

When Gentiles who have not the [divine] Law do instinctively what the Law requires, they are a law to themselves, since they do not have the Law. They show that the essential requirements of the Law are written in their hearts and are operating there, with which their consciences (sense of right and wrong) also bear witness; and their [moral] decisions (their arguments of reason, their condemning or approving thoughts) will accuse or perhaps defend and excuse [them]