Article 1223: Effect of Indivisibility

What does the Article mean?
Obligations may be divisible or indivisible. The fact that the object of the
obligation where there is only one debtor and only one creditor is divisible
or indivisible does not in any way change the nature and effect of such
obligation as provided by Articles 1164 to 1178 of the Civil Code.
What are divisible and indivisible obligations?
We say that an obligation is divisible if the person obliged to perform it can
do so partially. Therefore, an obligation to deliver five (5) kilograms of
rice is a divisible obligation in that the person obliged to deliver the same
can do so kilo by kilo.
On the other hand, we say that an obligation is indivisible if the person
obliged to perform it can do so only totally or completely, not partially.
Therefore, an obligation to deliver a certain unit of laptop is an indivisible
obligation because one is simply not expected to deliver the laptop unit by
pieces or by parts.
What is the difference between solidarity and indivisibility?
It must be noted, at this point, that indivisibility is different
from solidarity. Solidarity refers to the connection or link between
the parties (one of debtors may be completed by the creditor to render the
full obligation without prejudice to that debtors right to reimburse);
whereas, indivisibility refers to the nature of the obligation. Solidarity
presupposes at least two debtors or creditors because there can be not
solidary debt if there is only one debtor; whereas, indivisibility may exist
even if there are only one debtor and only one creditor since what is
indivisible is the obligation or the object thereof, not the ones to perform
the same. Finally, the responsibility or liability of one is the same for
others when it comes to solidarity; whereas, when it comes to indivisibility,
one debtor may release himself from the indivisible obligation in case of
fault by the other debtor by converting his share in said obligation into
monetary indemnity.
How is indivisibility established?
Indivisibility is established by the common agreement of the parties, by the
nature of the object of the obligation and by law. Annotators call these kinds
of indivisibility conventional, natural or absolute and legal indivisibility.
A and B agreed that the obligation shall be considered indivisible. This is
conventional indivisibility.
A and B did not agree that the obligation shall be considered indivisible but
by the very nature of the object of the obligation, it cannot be performed
partially. It can only be performed totally or completely. This natural or
absolute indivisibility.
And B did not agree that the obligation shall be considered indivisible. In
addition to this, the very nature of the object of the obligation does not
establish its indivisibility. However, the law specifically provides that the
thing to be done shall be considered indivisible. This is legal
indivisibility.
How can objects of the obligation be divided?
Objects of obligations can be divided quantitatively (by counting them), qualitatively (by considering their equivalence) and intellectually or morally (by making the division exist only in the mind). It is, therefore, fitting that annotators such as Paras term these divisions as: quantitative division, qualitative division and intellectual or moral division.