No wonder that, after receiving so complimentary an invitation, Melanchthon concluded to go to France, and applied (on the eighteenth of August) to the Elector John Frederick for the necessary leave of absence. He briefly sketched the history of the affair, and set forth his own reluctance to enter upon his delicate mission, until provided with the elector's permission and a safe conduct from the French monarch. Two or three months only would be consumed, and he had made arrangements for supplying his chair at Jena during this short absence.[370] It appears, however, that Melanchthon felt less confident of obtaining a gracious reply to his request than his words would seem to indicate. Consequently, he deemed it prudent to ask Luther to write first and urge his suit. The latter did not refuse his aid. "I am moved to make this prayer," said Luther in his letter to the elector, "by the piteous entreaty of worthy and pious persons who, having themselves scarcely escaped the flames, have by great efforts prevailed upon the king to suspend the carnage and extinguish the fires until Melanchthon's arrival. Should the hopes of these good people be disappointed, the bloodhounds may succeed in creating even greater bitterness, and proceed with burning and strangling. So that I think that Master Philip cannot with a clear conscience abandon them in such straits, and defraud them of their hearty encouragement."[371] [Sidenote: The elector refuses to let him go.] But even the great theological doctor's intercession was unavailing. The very day the elector received "Master Philip's" application, he wrote to Francis explaining his reasons for refusing to let Melanchthon go to Paris. It is true that the letter was not actually sent until some ten days later;[372] but no entreaties could move the elector to reconsider his decision. Melanchthon indignantly left the court and returned to Jena.[373] Here he subsequently received a written refusal from John Frederick, couched in language far from agreeable. The elector expressed astonishment that he should have permitted matters to go so far, and that he continued to apply for permission even after his prince's desire had been intimated. The danger to be apprehended for the peace of Germany was far greater than any possible advantage that could be expected from his mission. And the writer hinted very distinctly that little confidence could be reposed in Francis's professions, where the Gospel was concerned, as public history sufficiently demonstrated.[374] [Sidenote: Melanchthon's chagrin.]