The Church in Rome is not "the fullness of Christian truth." As Paul himself wrote (see 1 Cor. 11:27, for example), the thing going into your mouth is not "flesh," but "bread." To agree with Paul is not heresy, is not falling short of "the fullness of Christian truth."
May Rome decrease, and Christ increase.
You wrote:
“The Church in Rome is not “the fullness of Christian truth.” As Paul himself wrote (see 1 Cor. 11:27, for example), the thing going into your mouth is not “flesh,” but “bread.” To agree with Paul is not heresy, is not falling short of “the fullness of Christian truth.”
May Rome decrease, and Christ increase.”
The Catholic faith is the fullness of truth. Nothing in the Catholic faith disagrees with St. Paul nor did St. Paul diagree with anything in the Catholic faith of which He was an Apostle. Christ is increased and He increases the Catholic Church.