John Owen: Licentiousness was charged against Paul's doctrine of justification, but Paul showed it was the grounds of our sanctification

“I know that the doctrine here pleaded for [namely, justification by faith through the imputation of the righteousness of Christ] is charged by many with an unfriendly aspect towards the necessity of personal holiness, good works, and all gospel obedience in general, yea, utterly to take it away. So it was at the first clear revelation of it by the apostle Paul, as he frequently declares. But it is sufficiently evinced by him to be the chief principle of, and motive unto, all that obedience which is accepted with God through Jesus Christ, as we shall manifest afterwards. However, it is acknowledged that the objective grace of the gospel, in the doctrine of it, is liable to abuse, where there is nothing of the subjective grace of it in the hearts of men; and the ways of its influence into the life of God are uncouth unto the seasonings of carnal minds. So was it charged by the Papists, at the first Reformation, and continues yet so to be. Yet, as it gave the first occasion unto the Reformation itself, so was it that whereby the souls of men, being set at liberty from their bondage unto innumerable superstitious fears and observances, utterly inconsistent with true gospel obedience, and directed into the ways of peace with God through Jesus Christ, were made fruitful in real holiness, and to abound in all those blessed effects of the life of God which were never found among their adversaries.” –John Owen, The doctrine of Justification by Faith, through the Imputation of the Righteousness of Christ; explained, confirmed, and vindicated