The arrival of the emperor put an end to these disputes for the time being. But when Charles V demanded that the Protestant representatives should take part in the procession of Corpus Christi, and that Protestant preaching should cease in the city, Philip bluntly refused to obey. He now sought in vain to secure a modification of the tenth article of the Augsburg Confession, but when the position of the Upper Germans was officially rejected, Philip left the Diet directing his representatives manfully to uphold the Protestant position, and to keep general, not particular, interests constantly in view. At this time he offered Luther a refuge in his own territories and began to cultivate close relations with Martin Bucer, whose understanding of political questions created a common bond of sympathy between them. Moreover, Bucer fully agreed with the landgrave on the importance of compromise measures in treating the controversy surrounding the Eucharist.