Within the league itself, the question was now seriously considered, how far the Protestant States might go, in the event of the Emperor really seeking to coerce them to submission--whether, in a word, they could venture to oppose force to force. Luther's opinion, however, on this point remained unshaken. Whatever civil law and counsellors might say, it was conclusive for them as Christians, in his opinion, that civil authority was ordained by God, and that the Emperor, as the lord paramount of Germany, was the supreme civil authority in the nation. His first consideration was the imperial dignity, as he conceived it, and the relative position and duties of the princes of the Empire. As subjects of the Emperor, he regarded these princes in the same light as he regarded their own territorial subjects, the burgomasters of the towns and the various other magnates and nobles, to whom they themselves had never conceded any right to oppose, either by protest or force, their own regulations, as territorial sovereigns, in matters affecting the Church. Not, indeed, that he required a simply passive obedience, however badly the authorities and the Emperor might behave; on the contrary, he admitted the possibility of having to depose the Emperor. 'Sin itself,' he said, 'does not destroy authority and obedience; but the punishment of sin destroys them, as, for instance, if the Empire and the Electors were unanimously to dethrone the Emperor, and make him cease to be one. But so long as he remains unpunished and Emperor, no one should refuse him obedience.' Nothing, therefore, in his opinion, short of a common act of the Estates could provide a remedy against an unjust, tyrannical, and law-breaking Emperor, while at present it was apparent that Charles and the majority of the Diet were agreed. Hence he refused to recognise the right of individual States to an appeal to force, for his theory of the German Empire involved the idea of a firm and united community or State, and not in any way that of a league or federation, the independent members of which might take up arms against a breach of their articles of agreement. This theory was shared by his Elector and the Nürembergers. Just as these Protestants for conscience sake had refused obedience to the resolution of the Diet at Spires, so they felt themselves bound by conscience to submit to the consequences of that refusal. Luther's opinion, therefore, as to the proper attitude for the Protestant States was the same as he had expressed to the Elector Frederick on his return from the Wartburg. It was their duty, he said, if God should permit matters to go so far, to allow the Emperor to enter their territory and act against their subjects, without, however, giving their assent or assisting him. But he added: 'It is sheer want of faith not to trust to God to protect us, without any wit or power of man.... "In quietness and confidence shall be your strength."'