It demonstrates that the requirements of the law are woven into their hearts. They know what is right and wrong, for their conscience validates this “law” in their heart. Their thoughts correct them in one instance and commend them in another.
Whenever our hearts make us feel guilty and remind us of our failures, we know that God is much greater and more merciful than our conscience, and he knows everything there is to know about us.
You are swift to tell others, “Don’t commit adultery!” but are you guilty of adultery? You say, “I hate idolatry and false gods!” but do you withhold from the true God what is due him?
Until finally, Jesus was left alone with the woman still standing there in front of him. So he stood back up and said to her, “Dear woman, where are your accusers? Is there no one here to condemn you?”
All this you have done and I kept silent, so you thought that I was just like you, sanctioning evil. But now I will bring you to my courtroom and spell out clearly my charges before you.
Then at dawn Jesus appeared in the temple courts again, and soon all the people gathered around to listen to his words, so he sat down and taught them.
Then in the middle of his teaching, the religious scholars and the Pharisees broke through the crowd and brought a woman who had been caught in the act of committing adultery and made her stand in the middle of everyone.