Be glad in the Lord, and rejoice, O righteous,
and shout for joy, all you upright in heart! —Psalm 32:11
Charles H. Spurgeon comments on this verse in The Treasury of David:
Be glad. Happiness is not only our privilege, but our duty. Truly we serve a generous God, since he makes it a part of our obedience to be joyful. How sinful are our rebellious murmurings! How natural does it seem that a man blest with forgiveness should be glad! We read of one who died at the foot of the scaffold of overjoy at the receipt of his monarch’s pardon; and shall we receive the free pardon of the King of kings, and yet pine in inexcusable sorrow?
“In the Lord.” Here is the directory by which gladness is preserved from levity. We are not to be glad in sin, or to find comfort in corn, and wine, and oil, but in our God is to be the garden of our soul’s delight. That there is a God and such a God, and that he is ours, ours for ever, our Father and our reconciled Lord, is matter enough for a never ending psalm of rapturous joy.