Complex sentence: This is the case, for example, with more serious offenses, as some excommunicable offenses are reserved to the bishop or even to the Holy See, and their permission to grant absolution must be obtained.
Split into simpler sentences: This is the case, for example, with more serious offenses. Some excommunicable offenses are reserved to the bishop or even to the Holy See, and their permission to grant absolution would first have to be obtained.