In this letter the lawyers and the Princes again loom very large. They had most emphatically urged the employment of force, and “very strong reasons exist against my opposing this desire and plan of our party.” In his earlier memorandum[189] he had been thinking of the Emperor as Emperor, but now he had come to look on him as what he really was, viz. as a mere “hireling” of the Pope. The Pope is desirous of carrying out his “diabolical wickedness” with the help of the Emperor. “Hence, if it is lawful to fight against the Turks and to defend ourselves against them, how much more so against the Pope, who is worse?” Still, he was willing to stand by his earlier opinion, provided only that Pope, Cardinals and Emperor would admit that they were all of them the devil’s own servants; “then my advice will be the same as before, viz. that we yield to the heathen tyrants.” Other reasons too had led him, so he says, to discard his previous opinion, but he is loath to commit them to writing for fear lest something might reach the ears of “those abominable ministers of Satan.” Instead, he launches out into biblical proofs, urging that the “German Princes,” who together with the Emperor governed the realm, “_communi consilio_,” had more right to withstand the Emperor than the Jewish people when they withstood Saul, or those others who, in the Old Testament, resisted the authorities, and yet met with the Divine approval. The constitution of the Empire might not be altered by the Emperor, “who is not the monarch,” and “least of all in the devil’s cause. He may not be aware that it is this cause that he is furthering, but we know for certain that it is. Let what I have said be enough for you, and leave the rest to the teaching of the Spirit. Let your exhortation be to ‘render unto the Kaiser the things that are the Kaiser’s.’ _Ceterum secretum meum mihi._”[190] It is not difficult from the above to guess the “secret”: it was the impending apostasy of the Electorate of Brandenburg. Luther had already several times come into contact with Joachim II. The Elector’s mother was friendly with him and came frequently to Wittenberg. Concerning her foes Luther once wrote to Jonas: “May the Lord Jesus give me insight and eloquence against the darts of Satan.”[191] In his letter of congratulation to the Elector on his apostasy he hints more plainly at the opponents to whom he had referred darkly in his letter to Ludicke: “I am less concerned about the subtlety of the serpents than about the growl of the lion, which perchance, coming from those in high places, may disquiet your Electoral Highness.”[192]