If also the gospel of Christ is fulfilled in this same precept, but not the Creator’s Christ, what is the use of our contending any longer whether Christ did or did not say, “I am not come to destroy the law, but to fulfil it?” (Matt 5:17). In vain has (our man of) Pontus laboured to deny this statement. If the gospel has not fulfilled the law, then all I can say is, the law has fulfilled the gospel.
The Five Books Against Marcion
Note: Although Marcion rejected St. Matthew’s Gospel, which contains the statement, he retained St. Paul’s epistle, from which the statement is clearly proved.