I stumbled upon this:
"During the development process for the 1983 Code of Canon Law it was decided to remove expressions such as “under pain of mortal sin” with respect to the external prescriptions of Church law.
In part this was done to distinguish Church law and the moral law. Church law covers the external relationship of individuals in the Christian community. Since sin also involves internal factors, the law, in itself, does not bind under pain of sin."
“This technical distinction does not mean that no sin is committed by transgressing Church law. The fact that the code no longer binds attending Sunday Mass under pain of mortal sin does not change the fact that willful and inexcusable absence is mortally sinful.”
ZENIT International News Agency
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00165 Rome, Italy
Courtesy of E.W.T.N.
Can someone explain how this change in Canon Law translates into merely a “technical distinction” and no change? So technically the canon binding one to attend Sunday Mass “does not bind under pain of sin” since it is Church law rather than moral law, yet it remains a mortal sin?