No, not all the truths of the faith are demonstrable.
First Vatican Council, Dei Filius IV canon 1 on faith & reason:
If any one shall say that in divine revelation there are no mysteries, truly and properly so called, but that all the doctrines of faith can be understood and demonstrated from natural principles, by properly cultivated reason: let ...
Years ago this concept was put to me like this, being one person I have many roles in this life:
1) When I was created in my mother's womb, I became a son
2) Years later, I got married, so then I became a husband
3) And soon thereafter, my wife and I became parents, me being the father.
So with those 3 roles (and I have many more), I have different ...
"The Father is God, the Son is God, the Holy Spirit is God, they are
not three gods but one God' says the Athanasian Creed
The Scripture explains how the Father, the Son and the Holy Spirit are seen as the "one God".
One God, one Lord (1 Corinthians 8:6)
In this passage, the Father is said to be the one God (eis theos) whilst Jesus Christ is the one ...