Is that Christian to say if you don’t do Easter on my day you are excommunicated? I don’t know, but s. Paul did teach us to avoid those who caused division and to hold on to the tradition. We also know that ever since the days of the apostles we had
heretical and schismatic communities that were only nominally Christian but in fact excommunicated, no, worse,
under anathema. If you think that’s not Christian, deal with the Apostles and the Church Fathers, be bold with them, argue against them. Who knows, perhaps you are right and they are wrong. In the meanwhile, the Church will keep doing what the Church does, and schismatics and heretics will keep doing what they do: literally whatever pleases them most, all the while ignoring tradition and cherry-picking scripture.
If the Son of God founded a visible, perpetual Church on Earth, of which He is Head, do you think it makes
any sense that He wants some to not be part of it? That He wants some to be seventh day adventist, other muslims, other atheists, others new age neopagans, etc? Nobody says that He won’t be merciful and kind towards each and everyone even if we are not members of the Church, but
obviously He wants all to be a member of His Church. And sorry, but reason and history show without the least degree of doubt that at this point in history that visible Church subsists in the Catholic Church. Sure, we will find in heaven people from all ecclesiastic communities, even from other religions, and I dare say even some atheists who weren’t really so in their heart, but that is not the point, and you are totally missing the point in your attempt to defend the basic anti-catholic premise of protestantism.
Apostolic is as apostolic does . Don’t we all do the Apostles Creed ? Did the apostles hear confession ? Did they pray to dead saints or to Mary or the Rosary,or call others "father ? Is there a declaration that Peter was infallible when needed ? Did they place the eucharist in a monstrance ? Did the apostles live in palaces,or have an army, form a country/states ? Were they celibate ? Were they monastic? Did they wear normal apparel,in and out of service(Mass) ? Did they speak in the language of the people ? How many sacraments did they administer ? And yes, some of these things are a “practices” but some stem from doctrine.
Yes, the Apostles heard confessions.
Yes, the Apostles prayed to dead saints and to Mary (not the Rosary, because Mary gave it to St. Dominic in the XIII Century).
Yes, the Apostles called others “father” (it’s even in the New Testament).
Yes, there is a declaration that Peter was infallible when needed, from the mouth of Christ Himself.
No, they did not place the Eucharist in a monstrance, because they were too busy not getting slaughtered and because the concept of Eucharistic adoration was not yet present in tradition. But the teachings of the Apostles and of the Church Fathers on the Eucharist sustain Catholicism all the way.
They did not live in palaces because there weren’t any, but in the age of kings and emperors the Church had to adapt to the times. It is not the place that matters, nor the clothes one wears, but the heart.
Some were celibate, and some were monastic.
We don’t know what they wore during Mass, but tradition developed a liturgy and I hope I never see a priest wearing shorts and a sleeveless gym shirt while holding in his hands the Body of Christ.
The need of a universal language to communicate is common-sense, and it’s ridiculous to think that in a time in which you had random dialects all over the place, each community had to struggle to come up with a rendition of the liturgy that was accurate enough.
They administered exactly
7 Sacraments, the ones established by Christ, the ones that the Church still administers and always will.
But maybe I am wrong, maybe we all did it wrong, and how strange that God allowed us to go so astray for 15 centuries, and how blessed we are that a rebellious Catholic monk stood up to teach us how mistaken we are, leading to 800 million Christians to be spread within 41,000 denominations. Boy, you can definitely see the finger of God at work and the unifying force of the Holy Spirit shining forth, and in this amazing work of grace we clearly see the fulfillment of the prayer of Christ: “I want them to be one flock with one shepherd”.