A couple of weeks ago, I told my son a story that helped renew his faith in God's existence.  It got me thinking. How do I know God exists?  I have no idea how long this post is going to turn out to be, but I'm going to pour out from my heart whatever comes to mind from my personal experience that reassures me that I know MY GOD exists.  I am going to focus on ways that are personal to me, this isn't going to be an academic or intellectual endeavor this time around, although the evidence is staggering! (Check out the references at the end of this post for more information on the more universal evidence pointing to God's existence.)  These reasons are all mine.  You could refute them in a million ways, and explain them away, but it won't take away from my joy or my confidence.  My hope doesn't rest on these experiences, (that hope comes from the Bible and the Bible alone) but my faith has been strengthened by them along the way.

1. I have been protected from COUNTLESS mishaps as a naive younger woman that cannot be explained.  I should have been harmed.  Period.
2. I once read my Bible one morning and then went to work and shared what I had learned with a co-worker who sobbed, telling me that she had randomly opened her Bible that very morning in desperation and read the exact same portion of scripture and got up bereaved because she didn't understand it.  I had, unknowingly, interpreted it for her, and it spoke directly to a situation she was going through that I was unaware of.
3. I have woken up in the middle of the night with crystal clear ideas about ministry that I couldn't have come up with on my own.
4. I have been offered jobs and promotions that my own knowledge and skill set could not have commanded on their own.
5. My soul has been saved. Of that I have no doubts.
6. I have a strong desire to be in church with my brothers and sisters in Christ.  Every. Sunday.
7. I have had just the right friends at just the right times in my life.
8. My heart rate accelerates alarmingly whenever I am in a Bible Study or Sunday School class and I feel like I am supposed to speak up about something.  Whatever comes out of my mouth in those moments is passionate and very different emotionally than any other context where I might share things with a group.
9. There has been more than one occasion in my life when I needed a certain amount of money and God has provided it either to the penny, or above and beyond.
10. When we moved across the country (at God's leading), we left before our house had sold.  We got a solid offer 100 miles before our car crossed the border into the new State we would be living in.
11. When our foster daughters were brought to our home, I experienced the most unbelievable feeling of peace and a sustaining energy that I had never felt before.  I sensed God's pleasure and His provision.
12. I have been able to forgive offenses that would have haunted others for decades.
13. When my son uttered his belief in Christ and asked for forgiveness of his sins at the tender age of 6, he said and did some very specific things that made my heart sing and tears roll down my face.  I had been fearful that he would attempt to make that decision too early in life and that he wouldn't really understand it and that I would be plagued with doubts.  I have never doubted the reality of that experience for him.
14. I felt compelled to spend some time in intensive research of a specific portion of the Bible.  My husband agreed to me being away from the house for 3-4 hours a day for a month as I studied and wrote.  When it was all said and done, we didn't know what I was supposed to do with the final product.  We prayed about it.  Four months later a friend called and asked me if I would speak at weekend women's retreat at her church.  I had already prepared for it and I didn't even know she was going to ask.
15. My husband is not the man that I spent my college years looking for, and yet he is completely and utterly perfect for me in every way possible.  He came into my life unexpectedly and in a desert place (literally).
16. Many times when I read the Bible I find myself getting very excited or weeping, or compelled to act on what I've read.  This book was written by men who lived 2,000 years before I came on the scene, who lived in a very different cultural context.  There is no other book I have this reaction to.
17. Two of our foster daughters' mother was in a coma and very near to death.  I taught them to pray for the first times in their lives and we daily prayed for her recovery.  She bounced back.
18. My son has an inner joy and an adaptability that we could never have instilled in him on our own.  It is a gift from God that has sustained him through a lot of changes.
19. My parents moved to Southeast Asia as missionaries before my son learned to crawl.  I prayed that he would somehow be able to bond with them and love them well even though the distance couldn't have been greater.  They never spent a Christmas, Thanksgiving or birthday with us for the first 8 years of his life.  As an 11 year old boy, he LIGHTS UP at the thought of spending time with them and loves them deeply as though they lived down the street.
20. I am rarely without a song in my heart.

These are a few of my faith-builders over the years.  They are not yours.  They aren't the bottom-line proof of my faith in God, but they are the icing on the cake.  

Looking for more concrete answers to your questions about God:
1. Christian Apologetics and Research Ministry website - go here and click on "Questions."
2. Evidence That Demands A Verdict - a book by Josh McDowell
3. Give Me An Answer website - by Cliff Knechtle

Or - pick up a Bible - say a prayer telling God you want to find Him - seek out a Bible believing church to start attending - and see what happens:
"You will seek Me and find Me, when you search for Me with all your heart." - God.  Jeremiah 29:13