Yes there is a GOD and it is funny because I was just here working on my term paper for class that was on that same topic.  Better still if you don't mind just read in the King James Version  ( 1 Corinthians 8:6,  Mark 13:32, 12:29, 

Chapter 1 Timothy,  verse 2;5,  Isaiah 45:22, 46:9,   James 2:19 &  John 6:27

finally St. John 4:24  1 Peter 1:2

In my simplist answer, I've never seen the wind but I feel it, I 've never seen cold or hot but I feel it and i know the difference between the two and I've never asked a chair if it would hold me before I sat down, but I just believed that the chair would hold me.  Well belief in God works the same way  you may not see him, but you can feel Him and His presence and know that He is there.......pscharles526@aol.com