Panis de Deo

               He gives strength to the weary
                   and increases the power of the weak.
               Even youths grow tired and weary,
                   and young men stumble and fall;
               but those who hope in the Lord
                   will renew their strength.
               They will soar on wings like eagles;
                   they will run and not grow weary,
                   they will walk and not be faint.

--Isaiah 40:29-31