Of the many other works of Lucas I shall be able to notice even briefly but very few. The two _Professions of the Faith of the Unity_, addressed to King Vladislav, and similar documents addressed to Erasmus and Luther, have been already mentioned. Very curious is Lucas's work entitled _The Revival of the Holy Church, and the reasons which render it certain that such a revival has taken place in the shape of the Unity_. Lucas draws a curious mystic parallel between the life of Christ and the development of the Unity. He also refers to the simplicity of the primitive Church, and to the gradual increase of the power of the Bishops of Rome. In distinction from his predecessors, Lucas no longer believes in the "donation of Constantine." He only tells us that Constantine placed the Bishop of Rome before all other bishops. "Constantine," Lucas tells us, "seated Sylvester on a white horse. This appeared wonderful to the people, and in their Latin or Italian speech they exclaimed, 'Pape! Pape!'[84] that is, 'What a great, great wonder!'" Only Charles the Great, Lucas tells us, added temporal power to the ecclesiastical supremacy. It is particularly noticeable that in this book also Lucas does not allude to his travels, though on several occasions it would have been natural to do so. It is almost certain that this silence is intentional. Dr. Goll has, with great sagacity, suggested its cause. The brethren now believed that the true primitive Church had been revived in their own community, and did not wish to recall the fact that they had formerly sought for it elsewhere.