Whether in God the essence is the same as the person?

❌ Objection 1 : It would seem that in God the essence is not the same as person. For whenever essence is the same as person or "suppositum," there can be only one "suppositum" of one nature, as is clear in the case of all separate substances. For in those things which are really one and the same, one cannot be multiplied apart from the other. But in God there is one essence and three persons, as is clear from what is above expounded (Question [28], Article [3]; Question [30], Article [2]). Therefore essence is not the same as person.

❌ Objection 2 : Further, simultaneous affirmation and negation of the same things in the same respect cannot be true. But affirmation and negation are true of essence and of person. For person is distinct, whereas essence is not. Therefore person and essence are not the same.

❌ Objection 3 : Further, nothing can be subject to itself. But person is subject to essence; whence it is called "suppositum" or "hypostasis." Therefore person is not the same as essence.