Description: The Man and His Devotions. The "Only Believe" Sermons by Smith Wigglesworth is a spirit-filled classic. Jesus said to him, "If you can believe, all things are possible to him who believes." (Mark 9:23) If any Christian in the last century could be called unique, it would be Smith Wigglesworth. He was indeed one of a kind. The Only Believe collection contains many sermons by Smith Wigglesworth that have rarely been published. They are filled with his spiritual wisdom, experiences, and devotion to Jesus Christ!