We must now consider the parts of observance. We shall consider (1) dulia, whereby we pay honor and other things pertaining thereto to those who are in a higher position; (2) obedience, whereby we obey their commands.

Under the first head there are four points of inquiry:

A1 Whether honor is a spiritual or a corporal thing?

A2 Whether honor is due to those only who are in a higher position?

A3 Whether dulia, which pays honor and worship to those who are above us, is a special virtue, distinct from latria?

A4 Whether it contains several species?