According to Pope Pius XII, no Catholic can resist or oppose the teaching of a Pope once it becomes official (is entered in the Acta Apostolicae Sedis). If Pope Francis officially approves, as a result of the upcoming Synod on the Family, that the divorced and remarried, or those living in irregular unions, can receive Communion, and enters this in the Acta, then no Catholic can legitimately resists this teaching.
Pope Pius XII in Humani Generis:
"But if the Supreme Pontiffs in their official documents purposely
pass judgment on a matter up to that time under dispute, it is
obvious that that matter, according to the mind and will of the
Pontiffs, cannot be any longer considered a question open to
discussion among theologians."
On the other hand, Cardinal Burke has famously announced his
reaction, if Pope Francis insists on his progressive path regarding
Communion: "I will resist. I cannot do anything else. " Link. Others are supporting Burke's stance, saying they too will
resist: See e.g.
But as stated so clearly by Msgr. Joseph Clifford Fenton in the American Ecclesiastical Review :
"Thus, according to the clear teaching of the Humani generis,
it is morally wrong for any individual subject to the Roman
Pontiff to defend a thesis contradicting a teaching which the
Pope, in his "Acta," has set forth as a part of Catholic
doctrine. It is, in other words, wrong to attack a teaching
which, in a genuine doctrinal decision, the Sovereign Pontiff has
taught officially as the visible head of the universal Church.
This holds true always an everywhere, even in those cases in which
the Pope, in making his decision, did not exercise the plenitude
of his apostolic teaching power by making an infallible doctrinal
Consequently, if one still feels compelled to resist an official papal teaching in accordance with one's personal Sensus Catholicus, then the only intellectually honest approach
would be to consider that such a pope, who one believes officially errs in a matter of faith or morals, must be a false pope. For a brilliant and clear explanation and discussion of this
approach, see this article.
St. Padre Pio: "Do not cease in seeking the truth or in acquiring the
greatest good. Be docile to the impulse of grace, following its
inspirations. Do not be ashamed of Christ or his doctrine. "
Submitted 02/10/2015 by Frank Rega, www.frankrega.com