The preservation of our joy in God takes work. It is a fight. Our adversary the devil prowls around like a roaring lion, and he has an insatiable appetite to destroy one thing: the joy of faith. But the Holy Spirit has given us a sword called the Word of God for the defense of our joy. Or, to change the image, when Satan huffs and puffs and tries to blow out the flame of your joy, you have an endless supply of kindling in the Word of God.