What Does the Second Commandment Mean?

“You shall not take the name of the LORD your God in vain” (Exodus 20:7) is usually heard as a rule against cursing—and it does forbid that—but Luther’s explanation shows it reaches much wider, in both directions. “We should fear and love God,” he writes, “so that we do not curse, swear, use satanic arts, lie, or deceive by His name, but call upon it in every trouble, pray, praise, and give thanks.” Notice the shape: it forbids misusing God’s name and commands rightly using it.

The misuse covers more than four-letter words. It includes cursing (invoking God to damn), false or careless swearing (dragging God in to back up our words, which Jesus warns against in Matthew 5:33-37), lying or deceiving “in God’s name”—claiming his authority for what he never said, which is the sin of the false teacher—and using his name for magic or superstition. It also includes the quiet, common abuse of treating the most holy name in existence as a verbal reflex, an exclamation emptied of all reverence. God’s name is not filler.

But the commandment’s deeper thrust is positive, and this is where it becomes a gift rather than a mere restriction. God gives us his name so that we may use it—rightly, constantly, boldly. To keep this commandment is not merely to avoid abusing his name but to call upon it: to pray, praise, and give thanks. “Call upon me in the day of trouble; I will deliver you” (Psalm 50:15). God’s name is the door through which we come to him in prayer; refusing to use it that way is its own quiet breaking of the commandment.

So held honestly, this commandment convicts us twice—for the times we’ve abused God’s name, and for the times we’ve neglected it, going through whole days without calling on the God whose name was placed on us in Baptism. And it drives us to the One who bore that name perfectly, hallowing it in our place—Jesus, in whose name we are now invited to come to the Father without fear.