Sunday, at the Church of Jesus Christ in Bergman, AR, Pastor Thomas Robb preachd on this, stating that-in order to go the distance-we must have supreme faith in God or else we'll be crushed (while being useable to Him). Main scripture:

"But I keep under my body, and bring it into subjection: lest that by any means, when I have preached to others, I myself should be a castaway." 1 Corinthians 9:27, KJV