3 Naturally, We do not wish that either you or the faithful should fail to receive from Us a solemn testimonial of Our gratitude for the prayers which, according to Our intention were poured forth in private and at public functions. It is most important, too, that these prayers which have been so powerful an aid to Us should be continued, and even increased, with renewed fervor. It is assuredly not in the power of man to control the course of events or of history, nor can he direct them as he may desire to the welfare of society by changing either the minds or hearts of his fellow-men. Such action, however, is well within the power of God, for He without doubt can put an end, if He so desires, to persecutions of this kind. Nor must you conclude, Venerable Brothers, that all your prayers have been in vain simply because the Mexican Government, impelled by its fanatical hatred of religion, continued to enforce more harshly and violently from day to day its unjust laws. The truth is that the clergy and the great majority of the faithful have been so strengthened in their longsuffering resistance to these laws by such an abundant shower of divine grace that they have been enabled thereby to give a glorious example of heroism. They have justly merited, too, that We, in a solemn document executed by Our Apostolic authority, should make known this fortitude to the whole Catholic world.
Source: Iniquis Afflictisque (Vatican.va)