Angainor:
It is Hubris for Catholicism to define faith for eveyone. That is what Paul is talking about in Romans 14.
Naturally, we disagree on this. If your assertion concerning Paul is true then he would never have said the following to Timothy.
1 Timothy 1:3-7
As I urged you when I was going to Macedonia, remain at Ephesus that you may charge certain persons not to teach any different doctrine, nor to occupy themselves with myths and endless genealogies which promote speculations rather than the divine training that is in faith; whereas the aim of our charge is love that issues from a pure heart and a good conscience and sincere faith. Certain persons by swerving from these have wandered away into vain discussion, desiring to be teachers of the law, without understanding either what they are saying or the things about which they make assertions.
1 Timothy 1:18-20
This charge I commit to you, Timothy, my son, in accordance with the prophetic utterances which pointed to you, that inspired by them you may wage the good warfare, holding faith and a good conscience. By rejecting conscience, certain persons have made shipwreck of their faith, among them Hymenaeus and Alexander, whom I have delivered to Satan that they may learn not to blaspheme.
1 Timothy 4:11-16 Command and teach these things. Let no one despise your youth, but set the believers an example in speech and conduct, in love, in faith, in purity. Till I come, attend to the public reading of scripture, to preaching, to teaching. Do not neglect the gift you have, which was given you by prophetic utterance when the council of elders laid their hands upon you.
Practice these duties, devote yourself to them, so that all may see your progress. Take heed to yourself and to your teaching; hold to that, for by so doing you will save both yourself and your hearers.
Also Paul would not have been able to say this:
Eph 4:11-16
And his gifts were that some should be apostles, some prophets, some evangelists, some pastors and teachers, to equip the saints for the work of ministry, for building up the body of Christ, until we all attain to the unity of the faith and of the knowledge of the Son of God, to mature manhood, to the measure of the stature of the fulness of Christ; so that we may no longer be children, tossed to and fro and carried about with every wind of doctrine, by the cunning of men, by their craftiness in deceitful wiles. Rather, speaking the truth in love, we are to grow up in every way into him who is the head, into Christ, from whom the whole body, joined and knit together by every joint with which it is supplied, when each part is working properly, makes bodily growth and upbuilds itself in love.
I could go on but I think that these verses are sufficient to give credence to the idea of authority. If there is no authority but scripture there is only chaos in doctrine and belief, and that is precisely why Jesus prays for unity in John 17 and it is why Jesus establishes a church and gives it the power to bind and loose. Not only that, but Jesus was sent with all power and authority and he gave that same power and authority to his apostles. In John 20:21-22 it says, "Jesus said to them again, “Peace be with you. As the Father has sent me, even so I send you.” And when he had said this, he breathed on them, and said to them, “Receive the Holy Spirit.”
There is only one other time in scripture where God breathes on man, and that is in the book of Genesis when God breathes life into Adam. The verses in John indicate a very important moment in the life of the Church. The Church has the power and authority granted it by Jesus himself and Jesus says that not even the powers of death and Hades shall prevail against it.
When I finally turned it all over to the Church, which is the body of Christ, and submitted myself to the authority of the Church I was liberated from my pride and ego. The mercy of Jesus was heartfelt at that grace filled moment in my life. The yoke is light and the burden easy. May God bless you.