3 But on this point We cannot suppress the truth; when We mark the conduct which some Spaniards deem themselves justified in pursuing, We experience a feeling akin to that anxious solicitude of the Apostle St. Paul for the Corinthians. The perfect union of Catholics among themselves, and especially with their Bishops, had ever been secure and undisturbed in Spain, and led Our predecessor, Gregory XVI, to address to the Spanish people the well-merited eulogium that "the immense majority had persevered in its ancient reverence towards the Bishops and the inferior clergy canonically instituted."(1) But now, owing to party rivalry, signs are showing themselves of dissensions which are dividing minds, as it were, into different camps, and greatly disturbing even societies founded for a purely religious object. It happens often that in discussions as to the best manner of defending Catholic interests the authority of the Bishops has not that weight which should belong to it. Sometimes even, if a Bishop recommends or decrees something in virtue of his power, there are people who will submit to it but ill, or even openly criticize it, assuming that he has wished thereby to favour some or hinder others.
Source: Cum Multa (Vatican.va)