The New Testament records the history of the church from approximately A.D. 30 to approximately A.D. 90. Nowhere in the New Testament will you find the one true church doing any of the following: praying to Mary, praying to the saints, venerating Mary, submitting to a pope, having a select priesthood, baptizing an infant, observing the ordinances of baptism and the Lord’s Supper as sacraments, or passing on apostolic authority to successors of the apostles.
The 2nd, 3rd, and 4th century (and following) church did not have the complete New Testament. Churches had portions of the New Testament, but the New Testament (and the full Bible) were not commonly available until after the invention of the printing press in A.D. 1440. The early church did its best in passing on the teachings of the apostles through oral tradition, and through extremely limited availability to the Word in written form.
The Protestant Reformation was followed very closely after the invention of the printing press and the translation of the Bible into the common languages of the people. Once people began to study the Bible for themselves, it became very clear how far the Roman Catholic Church/Orthodox had departed from the church that is described in the New Testament.
Scripture never mentions using "which church came first" as the basis for determining which is the "true" church. What it does teach is that one is to use Scripture as the determining factor as to which church is preaching the truth and thus is true to the first church. It is especially important to compare Scripture with a church's teaching on such core issues as the full deity and humanity of Christ, the atonement for sin through His blood on Calvary, salvation from sin by grace through faith, and the infallibility of the Scriptures. The “first church” and “one true church” is recorded in the New Testament, Acts chapter 2; 11:19-30. That is the church that all churches are to follow, emulate, and model themselves after.
maryourhelp.org / 95 catechism questions & answers
what the catechism teaches
The Roman Rite is the main liturgical rite of the Latin or Western Church, the largest of the sui iuris particular Churches that make up the Catholic Church. It developed in the Latin language in the city of Rome and while distinct Latin liturgical ritres such as the Ambrosian Riteremain, the Roman Rite has over time been adopted almost everywhere in the Western Church.
The Sui iuris is a Latin phrase that literally means one's own rite. It is used in both civil law and canon law by the Catholic Church as in the Catholic Code of Canons of the Eastern Church's to denote the autonomous church's in Catholic communion.