Christianity
- Introduction
- The church and its history
- The essence and identity of Christianity
- The history of Christianity
- The primitive church
- The internal development of the early Christian Church
- Relations between Christianity and the Roman government and the Hellenistic culture
- The early liturgy, the calendar, and the arts
- The alliance between church and empire
- Theological controversies of the 4th and 5th centuries
- Liturgy and the arts after Constantine
- Political relations between East and West
- Literature and art of the “Dark Ages”
- Missions and monasticism
- The Photian schism and the great East–West schism
- From the schism to the Reformation
- Christianity from the 16th to the 20th century
- Contemporary Christianity
- Christian doctrine
- The nature and functions of doctrine
- Scripture and tradition: the apostolic witness
- Evangelism: the first teaching about the God of Jesus Christ
- Catechesis: instructing candidates for baptism
- Liturgy: the school and feast of faith
- Ethics: obeying the truth
- Aversion of heresy: the establishment of orthodoxy
- Apologetics: defending the faith
- Restatement: respecting language and knowledge
- Inculturation: respecting places and peoples
- Dogma: the most authoritative teaching
- Consensus: patterns of agreement
- Theology: loving God with the mind
- Symbolics: creeds and confessions
- Development: the maturation of understanding
- Schism: division over substantial matters
- Controversy: fighting over the faith
- Ecumenism: speaking the truth in love
- God the Father
- God the Son
- God the Holy Spirit
- The Holy Trinity
- Anthropology
- What it is to be human
- The human as a creature
- The human as the image of God
- Human redemption
- The problem of suffering
- The resurrection of the body
- Progressive human perfection
- The “new man”: The human being in the light of Christ
- The “reborn human”
- Human liberation
- Joy in human existence
- The charismatic believer
- Christian perfection
- Fellow humans as the present Christ
- The church
- Church tradition
- Eschatology
- Expectations of the Kingdom of God in early Christianity
- Expectations of the Kingdom of God in the medieval and Reformation periods
- Expectations of the Kingdom of God in the post-Reformation period
- The role of imminent expectation in missions and emigrations
- Eschatological expectations and secularization
- Concepts of life after death
- Aspects of the Christian religion
- Christian philosophy
- Christian mysticism
- Christian myth and legend
- The Christian community and the world
- The relationships of Christianity
- Christian missions
- Ecumenism
- Christianity and world religions
- Related
- Contributors & Bibliography
- Year in Review Links
Christian philosophy as natural theology
Natural theology is generally characterized as the attempt to establish religious truths by rational argument and without reliance upon alleged revelations. It has focused traditionally on the topics of the existence of God and the immortality of the soul.
Arguments for the existence of God
The design (or teleological) argument
St. Paul, and many others in the Greco-Roman world, believed that the existence of God is evident from the appearances of nature: “Ever since the creation of the world his invisible nature, namely, his eternal power and deity, has been clearly perceived in the things that have been made” (Romans 1:20). The most popular, because the most accessible, of the theistic arguments is that which infers a divine designer from perceived evidence of design in nature. The argument, propounded by medieval Christian thinkers, was developed in great detail in 17th- and 18th-century Europe by writers such as Robert Boyle, John Ray, Samuel Clarke, and William Derham and at the beginning of the 19th century by William Paley. They asked: Is not the eye as manifestly designed for seeing, and the ear for hearing, as a pen for writing or a clock for telling the time; and does not such design imply a designer? The belief that the universe is a coherent and efficiently functioning system likewise, in this view, indicates a divine intelligence behind it.
The argument from design was criticized by the Scottish philosopher David Hume in his Dialogues Concerning Natural Religion (1779). Hume conceded that the world constitutes a more or less smoothly functioning system; indeed, he points out, it could not exist otherwise. He suggests, however, that this may have come about as a result of the chance permutations of particles falling into a temporary or permanent self-sustaining order, which thus has the appearance of design. A century later the idea of order without design was rendered more plausible by Charles Darwin’s discovery that the adaptations of the forms of life are a result of the natural selection of inherited characteristics having positive, and the elimination of those having negative, survival value within a changing environment. Hume also pointed out that, even if one could infer an intelligent designer of the world, one would not thereby be entitled to claim that such a designer is the infinitely good and powerful Creator who is the object of Christian faith. For the world is apparently imperfect, containing many inbuilt occasions of pain and suffering, and one cannot legitimately infer a greater perfection in the cause than is observed in the effect.
In the 20th century, however, the design argument was reformulated in more comprehensive ways, particularly by the British philosophers Frederick R. Tennant (Philosophical Theology, 1928–30) and Richard Swinburne (using Thomas Bayes’s probability theorem in The Existence of God, 1979), taking account not only of the order and functioning of nature but also of the “fit” between human intelligence and the universe, whereby humans can understand its workings, as well as human aesthetic, moral, and religious experience. There were also attempts to show that the evolution of the universe, from the “big bang” of 13.8 billion years ago to the present state that includes conscious life, required the conjunction of so many individually improbable factors as to be inexplicable except as the result of a deliberate coordinating control. If, for example, the initial heat of the expanding universe, or its total mass, or the strength of the force of gravity, or the mass of neutrinos, or the strength of the strong nuclear force, had been different by a small margin, there would have been no galaxies, no stars, no planets, and hence no life. Surely, it was argued, all this must be the work of God creating the conditions for human existence.
These probability arguments were, however, strongly criticized. A basic consideration relevant to them all is that there is by definition only one universe, and it is difficult to see how its existence, either with or without God, can be assessed as having a specific degree of probability in any objective sense. It can of course be said that any form in which the universe might be is statistically enormously improbable, as it is only one of a virtual infinity of possible forms. But its actual form is no more improbable, in this sense, than innumerable others. It is only the fact that humans are part of it that makes it seem so special, requiring a transcendent explanation. Debate about the design argument continued through the late 20th and early 21st centuries, particularly in the United States (see also intelligent design).
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