There seems to be much confusion about the difference between doctrine/discipline
and confusion about the “development” of doctrine.
This article gives a clear explanation of why the Church cannot change its
teaching on Communion for the divorced and remarried :
Would the proposal actually require a change in Church teaching?
Yes. If the teaching on the indissolubility of marriage were not changed, a change would be required in the Church’s teaching in at least one of the following three areas:
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Code:
The gravely sinful nature of sexual relations with someone that you are not married to
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Code:
The need to repent of one’s sins, including “the firm purpose of sinning no more in the future,” to be validly absolved in confession
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Code:
The need to be in a state of grace to receive Communion
Why would the Kasper proposal require the changing of one or more of these Church teachings?
If having sexual relations in a second, civil marriage is adulterous, then such relations are gravely sinful. If they are gravely sinful, they need to be repented of in order to be absolved in confession so that one can return to a state of grace. If they are not repented of, then one committing them is not in a state of grace and so cannot receive Communion.
The Kasper proposal thus requires the belief that sexual relations in a second, civil marriage are not gravely sinful, that one does not have to repent of grave sin to be absolved, that one does not need to be in a state of grace to receive Communion, or some combination of these.
**So this isn’t merely a matter of Church discipline or pastoral practice but one of doctrine?
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Yes. Even if the indissolubility of marriage is upheld, a change in Church doctrine would be required on one or more points.
**Advocates of the proposal sometimes argue that it is possible for doctrine to develop. Could it develop on these points?
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Doctrinal development involves sharpening the Church’s understanding of particular points.
It is difficult to see how the Church’s understanding of the indissolubility of marriage, the nature and gravity of adultery, the need for repentance in confession, or the need for the state of grace for Communion could develop in a way that would allow the Kasper proposal.
The issues involved are not new or unexplored. They have been with the Church since the very beginning and have been settled parts of the magisterium’s teaching.
**Would the proposal help guide people in these situations toward a full acceptance of the Church’s teaching in their lives?
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Human nature suggests the opposite: Giving people absolution and Communion without repentance would remove key incentives for repentance and would confirm people in a sinful course of behavior.
read more -
catholic.com/documents/divorce-remarriage-communion-a-guide-to-what-is-happening-and-how-you-can-help