What's the plural form of apostolic succession? Here's the word you're looking for.
Answer
The noun apostolic succession can be countable or uncountable.
In more general, commonly used, contexts, the plural form will also be apostolic succession.
However, in more specific contexts, the plural form can also be apostolic successions e.g. in reference to various types of apostolic successions
or a collection of apostolic successions.
Examples
The church bases its claim to the apostolic succession of its bishops upon this event.
How non-Methodists react to his innovations no doubt depends on their attachment to the ancient creeds and to the apostolic succession which they express.
The Church is built upon the foundation of the apostles and prophets and there are no apostles and prophets today nor is there any such thing as an apostolic succession.
This they affirmed to be the very body of Christ, the locus of holiness, the society of saints, guaranteed by the unquestioned apostolic succession of their bishops.
There were questions about the papacy and apostolic succession, about sin and grace, about the authority of Scripture and tradition.
That continuity is rooted in apostolic succession, by which the whole mystery of Christ is handed on through the bishops.