D & C 123:17
"Therefore dearly beloved brethren, let us cheerfully do all things that lie in our power; and then may we stand still, with the utmost assurance, to see the salvation of God, and for his arm to be revealed."
"We should always strive to do all things that lie in our power. And God can help us exceed what we never thought was possible. The trick is to do it CHEERFULLY!"