Vincent of Lerins: Finding the true faith (434 AD)

Vincent attempted, as did St John Cassian, to find a way that avoided the extremes both of Pelagius and of Augustine. His Commonitories [reminders] offer a guide to distinguish Orthodox teaching from innovation, the maxim now known as the Vincentian Canon: quod ubique, quod semper, quod ab omnibus creditum est (i.e. only “what has been believed everywhere, always, and by all” is the catholic Faith of Christianity). Vincent taught that the ultimate source of Christian truth was Holy Scripture and that the tradition of the Church was to be invoked to guarantee the correct interpretation of Scripture…

Sola Scriptura

Why, if the Bible is sufficient apart from Holy Tradition, can a Baptist, a Jehovah’s Witness, a Charismatic, and a Methodist all claim to believe what the Bible says and yet no two of them agree what it is that the Bible says? Unfortunately, most Protestants are willing to blame this state of affairs on almost anything except the root problem…

Why did Christ become Man? (Athanasius, 318AD)

by Athanasius, bishop of Alexandria
Introduction by C.S. Lewis
1. Creation and the Fall

(1) In our former book [i.e. the Contra Gentes] we dealt fully enough with a few of the chief points about the heathen worship of idols, and how those false fears originally arose. We also, by God’s grace, briefly indicated that the Word of [...]