Great faith is responding to God when it is hardest to do so, either when the thing He demands of you hurts or else seems totally impractical.  It is faith that continues to respond to the Word of God in the absence of outward encouragement. – John White

(as quoted in the book Faith Crisis by Ronald Dunn, Life Journey Books, 2007)

Jesus said to him, “If you can believe, all things are possible to him who believes.”  Mark 9:23

Jesus said to her, “Did I not say to you that if you would believe you would see the glory of God?”  John 11:40