Gospel Principles The Gospel Principles manual contains study and teaching outlines for personal, family, and formal gospel study and instruction. This book provides an overview of gospel principles. It was revised in 2009. It is used for personal study and for the Gospel Principles class during Sunday School. In 2010 and 2011 it will be used for Melchizedek Priesthood and Relief Society instruction on the second and third Sundays of each month. Order the Gospel Principles online.   Languages