Those who want to be strong and have endurance need deep and outrageous joy.  Scripture and life experience reveal this to be so.  God's joy truly is our strength.  A merry heart is like good medicine.  In His presence is fullness of joy, and we are to serve the Lord with gladness.

This audio message by Steve Backlund not only reveals the biblical necessity of joy, but it will help ignite your gladness as you listen.