Q. 1. What is meant by the Holy Trinity?
A. 1. The Holy Trinity means that there is One God in Three Persons, the Father, the Son and the Holy Spirit. The Trinity is the term employed to signify the central doctrine of the Christian religion, the truth that in the unity of the Godhead there are Three Persons, the Father, the Son, and the Holy Spirit, these Three Persons being truly distinct one from another.
Q. 2. Is the word "Trinity" found in the Holy Bible?
A. 2. No, in the HOly Bible there is as yet no single term by which the Three Divine Persons are denoted together. The word trias (of which the Latin trinitas is a translation) is first found in Theophilus of Antioch about A.D. 180. That is the first written record of which we are aware. That does not mean that the word "Trinity" was not used before A.D. 180.
Q. 3. Is there anything else I should know about the Holy Trinity?
A. 3. Each part of the Holy Trinity has its own will and personality but each is also a part of the other. It is a rather difficult concept to understand for those unfamiliar with Christian doctrine on the term. It is thought of by most as part of the mystery of God.
In accordance with the Nicene Creed said by most Catholics during Mass, the following represents the Catholic view of the three aspects of God:
We believe in one God
The Father, the Almighty…
We believe in one Lord, Jesus Christ…
Eternally begotten from the Father…
One in being with the Father
We believe in the Holy Spirit, the Lord, the giver of life,
Who proceeds from the Father and the Son
With the Father and the Son he is worshipped and glorified…
"The mystery of the Most Holy Trinity is the central mystery of Christian faith and life. It is the mystery of God in himself. It is therefore the source of all the other mysteries of faith, the light that enlightens them. It is the most fundamental and essential teaching in the "hierarchy of the truths of faith". The whole history of salvation is identical with the history of the way and the means by which the one true God, Father, Son and Holy Spirit, reveals himself to men "and reconciles and unites with himself those who turn away from sin"." (Catechism of the Catholic Church # 234)