They show that the work of the law is written on their hearts. Their consciences confirm this. Their competing thoughts either accuse or even excuse them
Therefore, since we know the fear of the Lord, we try to persuade people. What we are is plain to God, and I hope it is also plain to your consciences.
Indeed, this is our boast: The testimony of our conscience is that we have conducted ourselves in the world, and especially towards you, with godly sincerity and purity, not by human wisdom but by God’s grace.
A man who is physically uncircumcised, but who keeps the law, will judge you who are a lawbreaker in spite of having the letter of the law and circumcision.