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Is there a God?

Short answer

Many thoughtful people, past and present, have concluded that the best explanation of reality is a personal God. Several independent lines of evidence point the same way. The universe had a beginning, which raises the question of what caused it. The laws of physics appear finely tuned for life within very narrow ranges. Objective moral values, such as the wrongness of cruelty for fun, seem to need a foundation deeper than evolution or social agreement. And human consciousness, reason and our longing for meaning are hard to explain if we are only matter in motion.

None of these arguments works like a mathematical proof, and they don't force belief. But they add up the way clues add up in a courtroom. Together they make theism a reasonable, even compelling, conclusion. Christianity adds a historical claim: God has not stayed hidden but has made himself known in Jesus of Nazareth, whose resurrection can be examined as a matter of history.

The question is also personal. If God exists, the next question is not only "Is it true?" but "What does it mean for me?"

Objections and responses

ObjectionThere's no scientific proof of God.

ResponseScience studies the natural world through measurement. Whether anything exists beyond nature is a philosophical question, though scientific findings like the universe's beginning and fine-tuning count as evidence that bears on it.

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ObjectionWho created God?

ResponseThe argument applies to things that begin to exist. God, by definition, is eternal and uncaused, so asking who made him is like asking who married the bachelor.

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ObjectionBelief in God is just wishful thinking.

ResponseHow a belief arose doesn't make it false; that is the genetic fallacy. The same charge could be turned around: atheism might be wishful thinking for someone who doesn't want moral accountability.

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ObjectionThere are so many religions; they can't all be right.

ResponseTrue, and that is a reason to examine the evidence for each rather than to dismiss them all. Disagreement doesn't mean there is no answer.

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Best resources

  • Reasonable Faith by William Lane Craig (book)

    Read Reasonable Faith by William Lane Craig for an in-depth, scholarly approach that is technical yet approachable, best for readers ready for careful philosophical argument. See especially the parts on the case for God's existence.

  • The Reason for God by Timothy Keller (book)

    Read The Reason for God by Timothy Keller for a warm, conversational approach built from the questions skeptics in New York City actually asked; a great first book for doubters and for anyone explaining faith to a friend. This question is covered in chapter 8, "The Clues of God".

  • Mere Christianity by C.S. Lewis (book)

    Read Mere Christianity by C.S. Lewis for a short, beginner-friendly classic that started as wartime BBC radio talks and explains the core of Christian belief in plain language. This question is covered in Book I, "Right and Wrong as a Clue to the Meaning of the Universe".

  • The Existence of God by Richard Swinburne (book)

    Read The Existence of God by Richard Swinburne for a rigorous academic case that weighs the evidence for God using probability; best for readers comfortable with technical philosophy. See especially the parts on the case for God's existence.

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