Even though a miracle were to be done in the pope's behalf against the temporal powers, or though someone were to be stricken with a plague--which they boast has sometimes happened--it should be considered only the work of the devil, because of the weakness of our faith in God. Christ Himself prophesied in Matthew xxiv: "There shall come in My Name false Christs and false prophets, and do signs and wonders, so as to deceive even the elect," [Matt. 24:24] and Paul says in II Thessalonians ii, that Antichrist shall, through the power of Satan, be mighty in lying wonders [2 Thess. 2:9]. Let us, therefore, hold fast to this: No Christian authority can do anything against Christ; as St. Paul says, "We can do nothing against Christ, but for Christ." [2 Cor. 13:8] Whatever does aught against Christ is the power of Antichrist and of the devil, even though it were to rain and hail wonders and plagues. Wonders and plagues prove nothing, especially in these last evil times, for which all the Scriptures prophesy false wonders [2 Thess. 2:9 f.]. Therefore we must cling with firm faith to the words of God, and then the devil will cease from wonders.

Thus I hope that the false, lying terror with which the Romans have this long time made our conscience timid and stupid, has been allayed. They, like all of us, are subject to the temporal sword; they have no power to interpret the Scriptures by mere authority, without learning; they have no authority to prevent a council or, in sheer wantonness, to pledge it, bind it, or take away its liberty; but if they do this, they are in truth the communion of Antichrist and of the devil, and have nothing at all of Christ except the name.

Works of Martin Luther — Part 48

We shall now look at the matters which should be discussed in the councils, and with which popes, cardinals, bishops and all the scholars ought properly to be occupied day and night if they loved Christ and His Church. But if they neglect this duty, then let the laity[42] and the temporal authorities see to it, regardless of bans and thunders; for an unjust ban is better than ten just releases, and an unjust release worse than ten just bans. Let us, therefore, awake, dear Germans, and fear God rather than men [Acts 5:29], that we may not share the fate of all the poor souls who are so lamentably lost through the shameful and devilish rule of the Romans, in which the devil daily takes a larger and larger place,--if, indeed, it were possible that such a hellish rule could grow worse, a thing I can neither conceive nor believe.

Works of Martin Luther — Part 48