John Calvin wrote against the Adultero-German Intrim in his tract The True Method for Giving Peace to Christendom and Reforming the Church. However, there is still some really great stuff in there . For instance, there is a great reminder to the church throughout all time the confidence which the have in the powerful blood of Christ. (emphasis mine)
“Then care must be taken that we do not either make men too secure and confident in themselves, or drive them by anxious doubting to despair. Wherefore, since Paul says, (Gal. 2.,) that he was indeed conscious of no sin, but yet by this was not justified, man cannot believe that his sins are forgiven without a doubt of his own weakness or indisposition. But although he ought not to boast in himself, he is not to be so terrified as to doubt the promises of God, and the efficacy of the death and resurrection of Christ, and despair of obtaining the forgiveness of sins and salvation. All hope, and the assurance of all confidence, ought to be in the precious blood of Christ, which was shed because of us and our salvation. In him alone we both can with certainty, and we ought, to breathe and confide, having the confirmation of the Holy Spirit, who bears witness with our spirit that we are the children of God.”
John Calvin and Hendry Beveridge, Tracts Relating to the Reformation, Volume 3 (Bellingham, WA: Logos Research Systems, Inc., 2009), 201-02.