Romans 6:15

Quoniam autem qui introducunt indifferentiam, paucas quasdam Scripturas detorquentes, titillanti suæ voluptati eas suffragari existimant; rum præcipue illam quoque: “Peccatum enim vestri non dominabitur; non estis enim sub lege, sed sub gratia;” et aliquas alias hujusmodi, quarum posthæc non est rationi consentaneum ut faciam mentionem (non enim nayera instruo piraticam), age paucis eorum argumentum perfringamus. Ipse enim egregius Apostolus in verbis, quæ prædictæ dictioni subjungit, intentati criminis afferet solutionem: “Quid ergo? peccabimus, quiâ non sumus sub lege, sed sub gratia? Absit.” Adeo divine et prophetice e vestigio dissolvit artem voluptatis sophisticam. Non intelligunt ergo, ut videtur, quod “omnes nos oportet manifestari ante tribunal Christi, ut referat unusquisque per corpus ea quæ fecit, sire bonum, sive malum:” ut quæ per corpus fecit aliquis, recipiat. …

Accordingly it is patience which is both subsequent and antecedent to faith. In short, Abraham believed God, and was accredited by Him with righteousness; but it was patience which proved his faith, when he was bidden to immolate his son, with a view to (I would not say the temptation, but) the typical attestation of his faith. But God knew whom He had accredited with righteousness. So heavy a precept, the perfect execution whereof was not even pleasing to the Lord, he patiently both heard, and (if God had willed) would have fulfilled. …

Ver. 15 . “What then? shall we sin, because we are not under the Law, but under grace? God forbid.”

“What then? shall we sin because we are not under the law? God forbid.” ( v. 15 .) For this cause God hath delivered thee from those sins that thou mightest no more run back to that dishonor. Since even physicians relieve their feverish patients from their heat, not that they may abuse their health to their injury and disorder, (since it would be better to be sick, if one was about to use his health only that he might confine himself again to his bed,) but having learnt the evils that arise from sickness, they may no longer fall into the same, that they may the more securely preserve their health, that they may do everything that conduces to its preservation.

Whoever then strives to reach the perfection of evangelical teaching, this man living under grace is not oppressed by the dominion of sin, for to be under grace is to do those things which grace commands. But whoever will not submit himself to the complete requirements of evangelical perfection, must not remain ignorant that, although he seems to be baptized and to be a monk, yet he is not under grace, but is still shackled by the chains of the law, and weighed down by the burden of sin. For it is the aim of Him, who by the grace of adoption accepts all those by whom He has been received, not to destroy but to build upon, not to abolish but to fulfil the Mosaic requirements. …