“If the doctrine of Sola Scriptura were true, then it should be expected that Protestants would all be in agreement in terms of doctrine, as the Bible could not simultaneously teach contradictory beliefs. And yet the reality is that there are literally thousands (35) of Protestant sects and denominations, each of which claims to have the Bible as its only guide, each of which claims to be preaching the truth, yet each of which teaches something different from the others. Protestants claim that they differ only in non-essential or peripheral matters, but the fact is that they cannot even agree on major doctrinal issues such as the Eucharist, salvation, and justification – to name a few.
For instance, most Protestant denominations teach that Jesus Christ is only symbolically present in the Eucharist, while others (such as Lutherans and Episcopalians) believe that He is literally present, at least to some extent. Some denominations teach that once you are “saved” you can never lose your salvation, while others believe it is possible for a true Christian to sin gravely and cease being “saved.” And some denominations teach that justification involves the Christian’s being merely declared righteous, while others teach that the Christian must also grow in holiness and actually become righteous.
Our Lord categorically never intended for His followers to be as fragmented, disunited and chaotic as the history of Protestantism has been since its very inception. (36) Quite the contrary, He prayed for His followers: “That they all may be one, as thou, Father, in me, and I in thee; that they also may be one in us.” (John 17:21). And St. Paul exhorts Christians to doctrinal unity with the words, “One body and one Spirit… One Lord, one faith, one baptism.” (Eph. 4:4-5). How, then, can the thousands of Protestant denominations and sects all claim to be the “true Church” when their very existence refutes this claim? How can such heterodoxy and contradiction in doctrine be the unity for which Our Lord prayed?
In this regard, the reader should be reminded of Christ’s own words: “For by the fruit the tree is known.” (Matt. 12:33). By this standard, the historical testimony afforded by Protestantism demonstrates that the tree of Sola Scriptura is producing bad fruit.”
35. By some estimates there are approximately 25,000 different Protestant denominations and sects. In the approximately 500 years since Protestantism’s origin with Martin Luther (usually dated at 1517), this number translates into an average of one new Protestant denomination or sect every week! Even if you take a conservative estimate of 10,000 denominations and sects, you still have a new one developing every 2 ½ weeks.
36. Even the original “Reformers” – Martin Luther, John Calvin and Ulrich Zwingli – did not agree on doctrinal matters and labeled each other’s teachings heretical.
Summa Catechetica, "Neque enim quaero intelligere ut credam, sed credo ut intelligam." – St Anselm, "Let your religion be less of a theory, and more of a love affair." -G.K. Chesterton, "I want a laity, not arrogant, not rash in speech, not disputatious, but men and women who know their religion, who enter into it, who know just where they stand, who know what they hold and what they do not, and who know their creed so well that they can give an account of it."- Bl John Henry Newman, Cong. Orat., "Encounter, not confrontation; attraction, not promotion; dialogue, not debate." -cf Pope Francis, “You will not see anyone who is really striving after his advancement who is not given to spiritual reading. And as to him who neglects it, the fact will soon be observed by his progress.” -St Athanasius, "To convert someone, go and take them by the hand and guide them." -St Thomas Aquinas, OP. 1 saint ruins ALL the cynicism in Hell & on Earth. “When we pray we talk to God; when we read God talks to us…All spiritual growth comes from reading and reflection.” -St Isidore of Seville, “Also in some meditations today I earnestly asked our Lord to watch over my compositions that they might do me no harm through the enmity or imprudence of any man or my own; that He would have them as His own and employ or not employ them as He should see fit. And this I believe is heard.” -GM Hopkins, SJ, "Only God knows the good that can come about by reading one good Catholic book." — St. John Bosco, "Why don't you try explaining it to them?" – cf St Peter Canisius, SJ, Doctor of the Church, Doctor of the Catechism, "Already I was coming to appreciate that often apologetics consists of offering theological eye glasses of varying prescriptions to an inquirer. Only one prescription will give him clear sight; all the others will give him at best indistinct sight. What you want him to see—some particular truth of the Faith—will remain fuzzy to him until you come across theological eye glasses that precisely compensate for his particular defect of vision." -Karl Keating, "The more perfectly we know God, the more perfectly we love Him." -St Thomas Aquinas, OP, ST, I-II,67,6 ad 3, “But always when I was without a book, my soul would at once become disturbed, and my thoughts wandered." —St. Teresa of Avila, "Let those who think I have said too little and those who think I have said too much, forgive me; and let those who think I have said just enough thank God with me." –St. Augustine, "Without good books and spiritual reading, it will be morally impossible to save our souls." —St. Alphonsus Liguori "Never read books you aren't sure about. . . even supposing that these bad books are very well written from a literary point of view. Let me ask you this: Would you drink something you knew was poisoned just because it was offered to you in a golden cup?" -St. John Bosco " To teach in order to lead others to faith is the task of every preacher and of each believer." —St. Thomas Aquinas, OP