Article II. On the Object of Faith

193. • The formal object of Faith, or the reason on account of which one believes, is the authority of God speaking, as being endowed with infinite wisdom as well as truthfulness. - Thus more commonly.

But the material object, concerning which alone the treatment here is made, consists of the things to be known and believed. Hence one must treat of things to be known and believed both by necessity of means and by necessity of precept.