Calvin wrote to Geneva on November 12, 1540, as follows:—‘Magnificent, mighty, and honourable Lords, were it only for the courtesy with which you treat me, it would be my duty to endeavour to meet your wishes. But there is, besides, the singular love which I bear to your church, which God once committed to my care, so that I am for ever bound to promote its good and its salvation. Nevertheless, be so good as to remember that I am here at Worms for the purpose of serving, with what small ability God has given me, all Christian churches. For this reason I am, for the present, unable to come and serve you.’*
He would have his mind changed. Geneva wanted him back and apparently so did God. And you can’t resist God…
*J. H. Merle D’aubigné D.D. and William L. R. Cates, History of the Reformation in Europe in the Time of Calvin (vol. 7; London: Longmans, Green, and Co., 1876), 12–13.