certain number of articles?

(7) Whether the same articles are of faith for all times?

(8) Of the number of articles;

(9) Of the manner of embodying the articles in a symbol;

(10) Who has the right to propose a symbol of faith?
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FIRST ARTICLE [II-II, Q. 1, Art. 1]

Whether the Object of Faith Is the First Truth?

Objection 1: It would seem that the object of faith is not the First
Truth. For it seems that the object of faith is that which is
proposed to us to be believed. Now not only things pertaining to the
Godhead, i.e. the First Truth, are proposed to us to be believed, but
also things concerning Christ's human nature, and the sacraments of
the Church, and the condition of creatures. Therefore the object of
faith is not only the First Truth.

Obj. 2: Further, faith and unbelief have the same object since they
are opposed to one another. Now unbelief can be about all things
contained in Holy Writ, for whichever one of them a man denies, he is
considered an unbeliever. Therefore faith also is about all things
contained in Holy Writ. But there are many things therein, concerning
man and other creatures. Therefore the object of faith is not only
the First Truth, but also created truth.