Ontology of "the whole"

A look at the concept of "the whole" as the ontological category implies its extremity or finite divisibility, that is a fundamental difference from infinitely divisible "sum of its parts". And if the integrity of the "sum of its parts" corresponds to the observations of physical reality, ontologically "the whole" is the postulated abstract which is not associated with such observations. This difference is significant not only for mathematical and natural-philosophical theories, but also for Cataphatic and apophatic theology.