Rejoice in the Lord always. Again I will say, rejoice.
Many believers allow themselves to be victimized by their circumstances and consequently vacillate between a spiritual high and low. For them, a command to rejoice seems unreasonable. But the command of today’s verse is to rejoice “in the Lord.”
We can’t always rejoice in our circumstances or other people because both can be bad. However, we can rejoice in the Lord because He is always good and we know He never changes. Thus, our spiritual stability directly relates to our knowledge of God. Knowing Him helps us live above our circumstances and provides stability. That’s why the Psalms were written in poetic form and meter and set to music—so the people of Israel could memorize Scripture and sing hymns to deepen their knowledge of God. Knowing Him makes everything else seem less significant.