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What Is the Personal Experience Argument for God’s Existence?

Not long after my dad, Josh, became a Christian he was in a debate with the head of the history department at a Midwestern university. He was telling him how his new relationship with God gave him meaning and purpose. He interrupted with, “McDowell, are you trying to tell me that you believe in God and he has really changed that much about your life? Give me some specifics.” After listening to a 45 minute explanation, he finally said, “Okay, okay—that’s enough!”

People have asked my dad, “How do you know you became a Christian?” “How do you know God is real?” For one, he changed his life. This transformation is one way that he’s assured of the validity of his conversion and the existence of a real and personal God.

I’m sure you have heard people speak of the “bolt of lightning” that hit them when they had their first religious experience. Well, it wasn’t that dramatic for my dad. After he prayed, nothing happened.  Nothing. He still hasn’t sprouted wings or a halo. In fact, after he made his commitment to God, he felt worse. He actually felt he was about to throw up. Oh no—what have I gotten sucked into now? He wondered. He really felt he had gone off the deep end (and some people probably think he did!).  1

The change in his life was not immediate, but it was real. Because of what happened in the time 6 to 18 months after his conversion, he knew he had not gone off the deep end. He had experienced God, and that had changed everything.

A personal experience with God is evidence of his reality. Some people might challenge this assertion, saying that such an experience could easily be an illusion or an emotional or psychological fantasy. But those who have genuinely experienced encounters similar to what Paul the apostle experienced on the Damascus road know better. They know it is real. Such experiences are one of many affirmations of Paul’s statement: “Now that you belong to Christ, you are the true children of Abraham. You are his heirs, and now all the promises God gave to him belong to you” (Galatians 3:29 nlt).

1. Josh McDowell and Sean McDowell, More Than a Carpenter (Wheaton, IL: Tyndale House Publishers, 2009), 161-162.

A personal experience of God by itself may not be convincing evidence for others, but that does not make it less real. In combination with added evidences or arguments for his existence, a personal testimony to his reality can provide a powerful witness that he “exists and that he rewards those who earnestly seek him” (Hebrews 11:6 niv).

This chapter originally appeared in 77 FAQs About God and the Bible by Sean McDowell and Josh McDowell (2012). Used by permission from Harvest House Publishers.


An early belief of some philosophers of Ancient Greece was that the mind was like a recording device and simply kept somehow-objective records of what the senses experienced. This was believed in the Western world into the 20th century until cognitive psychology experiments decisively proved that it was not true, and that many events were simply filled in by the mind, based on what "should be - Marla Ahlgrimm

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Sean McDowell is a teacher, author, speaker, husband and father. He is an avid fan of college basketball, ping-pong, and his favorite superhero is the Amazing Spiderman.