C. S. Lewis, the famous Anglican writer, once wrote:
The very possibility of progress demands that there should be an unchanging element . . . the positive historical statements made by Christianity have the power . . . of receiving, without intrinsic change, the increasing complexity of meaning which increasing knowledge puts into them.
(God in the Dock, Eerdmans, Grand Rapids, Michigan, 1970, 44-47)
The Catholic Church, in agreement with Lewis, defines doctrinal development as a growth of depth and clarity in the understanding of the truths of divine revelation. It is important to understand that the substantial or essential truths at the core of each doctrine remain unchanged. Only the subjective grasp of men increases. This increase is the result of the prayerful reflection of the Church, theological study and research (often occasioned by heretical challenges), practical experience, and the collective wisdom of the Church’s bishops and popes, especially when joined in Ecumenical Councils.
Like many Christian doctrines, the idea of doctrinal development is based on much implicit or indirect scriptural evidence. The best indications are perhaps Mt. 5:17, 13:31-2, Jn. 14:26, 16:13, 1 Cor. 2:9-16, Gal. 4:4, Eph. 1:10, 4:12-15. Furthermore, doctrine clearly develops within Scripture (“progressive revelation”). Examples: doctrines of the afterlife, the Trinity, the Messiah (eventually revealed as God the Son), the Holy Spirit (Divine Person in the New Testament), the equality of Jews and Gentiles, bodily resurrection, sacrifice of lambs evolving into the sacrifice of Christ, etc.
Not a single doctrine emerges in the Bible complete with no further need of development.
In general, whenever Scripture refers to the increasing knowledge and maturity of Christians and the Church, an idea very similar to doctrinal development is present. Holy Scripture, then, is in no way hostile to development. It is only Protestant presuppositions – not always so “biblical” – which preclude development for fear of “excess.”
The Canon of Scripture itself is an example of developing doctrine. The New Testament never informs us which books comprise itself, and its Canon (final list of books) took about 360 years to reach its final form (at the Council of Carthage in 397). For instance, the books of Hebrews, James, 2 Peter, 2 and 3 John, Jude, and Revelation were not widely accepted by the Church until 350 A.D.!
And books such as Barnabas and 1 and 2 Clement were considered Scripture by many at the same time (for example, the manuscripts Codex Sinaiticus and Codex Alexandrinus). Of the 27 New Testament books, 14 were not mentioned at all until around 200 A.D., including Acts, 2 Corinthians, Galatians and Colossians.
On what grounds, then, can we receive the Canon today except on the authority of the Church in the 5th century? These facts cause insuperable problems for Protestantism and its guiding principle of “Scripture Alone,” but are not a difficulty in the least for Catholics, who believe in Tradition, Church Authority, and development – all crucial elements in the very human process of selection of the biblical Canon.
It is plain silly (not to mention insufferably arrogant) to assert, as did Luther and especially Calvin, that the knowledge of what books constitute Scripture is attained simply by an intuitive and subjective inkling within each Spirit-filled person. If the early Church had such a difficult time determining what was and was not Scripture, how could Calvin 15 centuries later claim that it was altogether simple for him and every other sincere Christian?!
The Church is called the “Body” of Christ often (e.g., Eph. 1:22-3), and is compared to a seed which grows into a tree (Mt. 13:31-2).
Seeds and bodies grow and expand. Yet Protestants tend to see Church and Doctrine as more like a statue, subject to pigeon droppings (i.e., so-called Catholic “corruptions”!).
This robs the metaphors of Christ of their essential meaning. It is impossible to claim that no development occurred in Church history, or that it ceased after the 1st, 2nd, 3rd, or 5th century, etc. (all arbitrary human traditions). The Bible is not absolutely clear in every part, and requires the developing wisdom of the Church.
Doctrines agreed upon by all develop, too. The Divinity or Godhood of Christ was only finalized in 325, and the full doctrine of the Trinity in 381.The dogma of the Two Natures of Christ (God and Man) was proclaimed in 451. These decisions of General Councils of the Church were in response to challenging heresies. Why should Protestants accept these authoritative verdicts, but reject similar proclamations on Church government, the Eucharist, Mary, Purgatory, etc.?
Although understanding increases,
the essential elements of doctrines exist from the beginning. Today’s Church shouldn’t be expected to look like the primitive Church if it is a living, vibrant, spiritual organism. But even the early Church looks like a small “Catholic tree.” It doesn’t look like a Protestant “statue,” doomed to be increasingly corrupted by an encroaching, “diabolical” Catholicism, as is imagined by millions of Protestants unacquainted with the early Church and the oldest source materials after the New Testament, such as the writings of St. Ignatius of Antioch (d.c. 110) and St. Clement of Rome (d.c.101).