It is dealing with something that is more profound than just curse words on our lips, where we use the name of the Lord when we hit our thumb with the hammer.
There are serious consequences for breaking the third commandment and taking God’s name in vain. Why are we held guilty if we take His name in vain? What acts do we commit that amount to taking His name in vain?
The first petition of the Lord’s Prayer, “Hallowed be Thy name,” is inseparably connected with the invocation, the address, because we cannot hallow God’s name unless we are His sons and He is our Father.