Absolutely nothing, but what is wrong with examining what the very early Christians believed and were taught?
Sleep off the beers genius.
The first-century believers kept it simple: believe in the Lord Jesus Christ alone for Salvation and Eternal Life as He taught. The early church
did not teach nor advocate what Rome came along later to teach and use as methods to convert pagans to the Vatican-led Roman Catholicism:
(excerpt)
I. ROME’ S CHURCH TRADITION
A. Some Roman Catholic Heresies and Inventions, and the Dates of their Adoption:
1. Prayers for the dead; about 300
2. Making the sign of the cross; 300
3. Wax candles; about 320
4. Veneration of angels and dead saints, and use of images; 375
5. The Mass as a daily celebration; 394
6. Beginning of the exaltation of Mary, the term “Mother of God” first applied to her by the Council of Ephesus; 431
7. Priests began to dress differently from laymen; 500
8. Extreme Unction; 526
9. The doctrine of Purgatory, established by Gregory I; 593
10. Latin Language, used in prayer and worship, imposed by Gregory I; 600
11. Prayers directed to Mary, dead saints and angels; about 600
12. Title of pope, or universal bishop, given to Boniface III by emperor Phocas; 610
13. Kissing the pope s foot, began with pope Constantine; 709
14. Temporal power of the popes, conferred by Pepin, king of France; 750
15. Worship of the cross, images and relics, authorized in; 786
16. Holy water, mixed with a pinch of salt and blessed by a priest; 850
17. Worship of St. Joseph; 890
18. College of Cardinals established; 927
19. Baptism of bells, instituted by pope John XIV; 965
20. Canonization of dead saints, first by pope John XV; 995
21. Fasting of Fridays and during lent; 998
22. The Mass, developed gradually as a sacrifice, attendance made obligatory in the 11th century
23. Celibacy of the priesthood, decreed by pope Gregory VII (Hildebrand); 1079
24. The Rosary, mechanical praying with beads, invented by Peter the Hermit; 1090
25. The Inquisition, instituted by the Council of Verona; 1184
26. Sale of Indulgences; 1190
27. Transubstantiation, proclaimed by pope Innocent III; 1215
28. Auricular Confession of sins to a priest instead of to God, instituted by pope Innocent III, in Lateran Council; 1215
29. Adoration of the wafer (Host), decreed by pope Honorius III; 1220
30. Bible forbidden to laymen, placed on the Index of Forbidden Books by the Council of Valencia; 1229
31. The Scapular, invented by Simon Stock, an English monk; 1287
32. Cup forbidden to the people at communion by Council of Constance; 1414
33. Purgatory proclaimed as a dogma by the Council of Florence; 1438
34. The doctrine of Seven Sacraments affirmed; 1439
35. The Ave Maria (part of the last half was completed 50 years later and approved by pope Sixtus V at the end of the 16th century); 1508
36. Jesuit order founded by Loyola; 1534
37. Tradition declared of equal authority with the Bible by the Council of Trent; 1545
38. Apocryphal books added to the Bible by the Council of Trent; 1546
39. Creed of pope Pius IV imposed as the official creed; 1560
40. Immaculate Conception of the Virgin Mary, proclaimed by pope Pius IX; 1854
41. Syllabus of Errors, proclaimed by pope Pius IX, and ratified by the Vatican Council; condemned freedom of religion, conscience, speech, press, and scientific discoveries which are disapproved by the Roman Church; asserted the pope s temporal authority over all civil rulers; 1864
42. Infallibility of the pope in matters of faith and morals, proclaimed by the Vatican Council; 1870
43. Public Schools condemned by Pope Pius XI; 1930
44. Assumption of the Virgin Mary (bodily ascension into heaven shortly after her death), proclaimed by Pope Pius XII; 1950
B. Add to these many others: monks, nuns, monasteries, convents, forty days lent, holy week, Palm Sunday, Ash Wednesday, All Saints Day, Candlemas, fish day, meat days, incense, holy oil, holy palms, Christopher medals, charms, novenas, and others.
Source:
The Roman Catholic Church of the Middle Ages
As ItalianScallion mentioned, it didn't take long for disagreements to set in which has resulted in the diverse formation of denominational sects. The religious leaders became prideful and power hungry and began to pervert the simplicity of Christ's message -
even introducing a different Jesus to fit their own teaching. New rules and regulations were imposed by misguided leaders which placed followers back into religious bondage. This then led them away (as it does today) from the True Message of Salvation that Jesus taught.
Galatians, Chapter 1:
6: I marvel that ye are so soon removed from him that called you into the grace of Christ unto another gospel:
7: Which is not another; but there be some that trouble you, and would pervert the gospel of Christ.
8: But though we, or an angel from heaven, preach any other gospel unto you than that which we have preached unto you, let him be accursed.
9: As we said before, so say I now again, If any man preach any other gospel unto you than that ye have received, let him be accursed.
10: For do I now persuade men, or God? or do I seek to please men? for if I yet pleased men, I should not be the servant of Christ.