Ps 102:6

“Further, the restoration of this [unwritten natural law] by a written law, after it had been corrupted, was the work of grace. Moreover, the logical consequence was that they who transgressed the precept, once it had been given, be punished and dishonored; this, however, was not what took place. Rather, reinstatement once more and pardon: not due, of course, but given out of mercy and grace. In proof that it was given out of mercy and grace, listen to what David says: "The Lord works deeds of mercy and judgment for all that suffer wrong. He has made known his ways to Moses, his deeds to the children of Israel." And again: "The Lord is good and righteous; he will give a law to sinners in the way."”

“"The Lord executes mercy and judgment for all them that are oppressed with wrong" [Psalm 103:6]....An adulterous woman is brought forward to be stoned according to the Law, but she is brought before the Lawgiver Himself....Our Lord, at the time she was brought before Him, bending His Head, began writing on the earth. When He bent Himself down upon the earth, He then wrote on the earth: before He bent upon the earth, He wrote not on the earth, but on stone. The earth was now something fertile, ready to bring forth from the Lord's letters. On the stone He had written the Law, intimating the hardness of the Jews: He wrote on the earth, signifying the productiveness of Christians. Then they who were leading the adulteress came, like raging waves against a rock: but they were dashed to pieces by His answer. For He said to them, "He that is without sin among you, let him first cast a stone at her." [John 8:7] And again bending His head, He began writing on the ground. And now each man, when he asked his own conscience, came not forward. It was not a weak adulterous woman, but their own adulterate conscience, that drove them back. They wished to punish, to judge; they came to the Rock, their judges were overthrown by the Rock.. ..”