Luther: “Unless I am convinced by the testimony of the Scriptures or by clear reason (for I do not trust either in the pope or in councils alone, since it is well known that they have often erred and contradicted themselves), I am bound by the Scriptures I have quoted and my conscience is captive to the Word of God. I cannot and I will not retract anything, since it is neither sale nor right to go against conscience.”
The Secretary of the Archbishop of Trier, Johann Eck: “…But now you revive those [errors] which the general Council of Constance, composed of the whole German nation, has condemned, and you wish to be refuted by means of Scripture. In this you are completely mad. For what purpose does it serve to raise a new dispute about matters condemned through so many centuries by church and council? Unless perhaps a reason must be given to just anyone about anything whatsoever. But if it were granted that whoever contradicts the councils and the common understanding of the church must be overcome by Scripture passages, we will have nothing in Christianity that is certain or decided” (“Luther at the Diet of Worms (1521),” LW 32, 112, 113; my emphasis).