The first principle of the Gospel is faith in the Lord Jesus Christ. How simple a statement, yet how profound a doctrine.
According the Joseph Smith we define faith as “the first princple in revealed religion, and the foundation of all righteousness. Faith…is the first great governing principle which has power, dominion, and authority over all things; by it they exist, by it they are upheld, by it they are changed, or by it they remain, agreeable to the will of God.” (Lectures on Faith 1:1, 22-24)