- “In a dark and troubled hour the Lord said to those he loved: Let not your heart be troubled, neither let it be afraid (John 14:27.) These great words of confidence are a beacon to each of us. In him we may indeed have trust. For he and his promises will never fail.” Manual, Teachings of the President of the Church: Gordon B Hinckley, Chapter 3, Cultivating an Attitude of Happiness and a Spirit of Optimism