John Calvin on John 8:11

11. Neither do I condemn thee. We are not told that Christ absolutely acquitted the woman, but that he allowed her to go at liberty. Nor is this wonderful, for he did not wish to undertake any thing that did not belong to his office. He bad been sent by the Father to gather the lost sheep, (Matthew 10:6;) and, therefore, mindful of his calling, he exhorts the woman to repentance, and comforts her by a promise of grace. They who infer from this that adultery ought not to be punished with death, must, for the same reason, admit that inheritances ought not to be divided, because Christ refused to arbitrate in that matter between two brothers, (Luke 12:13.) Indeed, there will be no crime whatever that shall not be exempted from the penalties of the law, if adultery be not punished; for then the door will be thrown open for any kind of treachery, and for poisoning, and murder, and robbery. Besides, the adulteress, when she bears an unlawful child, not only robs the name of the family, but violently takes away the right of inheritance from the lawful offspring, and conveys it to strangers. But what is worst of all, the wife not only dishonors the husband to whom she had been united, but prostitutes herself to shameful wickedness, and likewise violates the sacred covenant of God, without which no holiness can continue to exist in the world.

Yet the Popish theology is, that in this passage Christ has brought to us the Law of grace, by which adulterers are freed from punishment. And though they endeavor, by every method, to efface from the minds of men the grace of God, such grace as is every where declared to us by the doctrine of the Gospel, yet in this passage alone they preach aloud the Law of grace. Why is this, but that they may pollute, with unbridled lust, almost every marriage-bed, and may escape unpunished? Truly, this is the fine fruit “Voyla la beau fruict.” which we have reaped from the diabolical system of celibacy, that they who are not permitted to marry a lawful wife can commit fornication without restraint. But let us remember that, while Christ forgives the sins of men, he does not overturn political order, or reverse the sentences and punishments appointed by the laws.

Go, and sin no more. Hence we infer what is the design of the grace of Christ. It is, that the sinner, being reconciled to God, may honor the Author of his salvation by a good and holy life. In short, by the same word of God, when forgiveness is offered to us, we are likewise called to repentance. Besides, though this exhortation looks forward to the future, still it humbles sinners by recalling to remembrance their past life.

John 8:12-14

12. Therefore Jesus spoke again to them, saying, I am the light of the world; he who followeth me shall not walk in darkness, but shall have the light of life. 13. The Pharisees therefore said to him, Thou testifiest concerning thyself, thy testimony is not true. “Ton tesmoignage n’est pas vrai; c’est a dire, n’est point digne de foy.” — “Thy testimony is not true; that is, is not worthy of credit.” 14. Jesus answered, and said to them, Though I testify concerning myself, my testimony is true: “Mon tesmoignage est vray; c’est a dire, digne de foy.” — “My testimony is true; that is, worthy of credit. for I know whence I came, and whither I go; but you know not whence I come, and whither I go.