Psalms 103:6

...and that we received this law in our very nature, and that our Creator entrusted to us the impartial rule of conscience, these I say, are proofs of the greatest grace and unspeakable lovingkindness. And the recovery of this law after it had become corrupt, by means of the written (Law), this too was the work of grace. For what might have been expected to follow was, that they who falsified the law once given should suffer correction and punishments; but what actually took place was not this, but, on the contrary, an amending of our nature, and pardon, not of debt, but given through mercy and grace. For to show that it was of grace and mercy, hear what David saith; "The Lord executeth righteousness and judgment for all that are oppressed; He made known His ways unto Moses, His acts unto the children of Israel": and again; "Good and upright is the Lord, therefore will He give laws to them that are 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.. ..