Oldbear83 said:
So I must reject the 'fullness of truth' claim as completely false and frankly hubris in its essence.
I realize that the "fullness of truth" is a very bold claim. Before I delve into it, I would like to state that ALL religions have some truth. Both our Muslim and Jewish brothers believe in an Abrahamic, monotheistic God.
Catholic and Protestants (not including LDS, JW, or SDA) share SO many common beliefs:
Monotheistic God that created the universe
That God is a Triune God, comprised of Father, Son, and HS
Fall of Man
Virginal Birth of Jesus
Sinlessness of Jesus
Hypostatic union of Jesus
Torture, Death, Resurrection, and Ascension of Jesus
Descent of the HS at Pentecost
27 books of the NT
We share a great many truths. Having said that, disagreements, obviously, exist. Original sin, Nature of Baptism, justification, atonement, sacraments, Eucharist, end times, etc.
We are not relativists. Only one truth can exist. Either 7 sacraments exist or not. Baptismal regeneration or not. Died for all or limited atonement. The Eucharist is the Body, Blood, Soul, and Divinity or not. Truth here is an either / or proposition.
Because Jesus established a Church, made Peter it's leader, thru Apostolic Succession, has an unbroken line for nearly 2000 years of Doctrine and Dogmas that developed over time, the Church will claim that She is the FULLNESS of truth. This isn't saying that our Protestant brethren don't have some truth. On the contrary, Protestants have a GREAT deal of truth in their beliefs, just not the FULLNESS.
1 Tim 3:15 states:
"… the church of the living God, the pillar and bulwark of the truth."