Help my unbelief - a Christian perspective
Jesus was in a crowd when a boy started convulsing on the ground. The father asked Jesus to help the boy if possible. Jesus said that all things were possible if you believe. The man replied that he did believe and asked Jesus to help his unbelief. He knew that without help he would never erase all doubt from his mind, but with Jesus he would have a chance.
http://biblegateway.com/passage/?search=Mark%209:24&version=NIV