"The devotion to the Holy Name of Jesus has been traditionally associated with the month of January, due to its celebration on January 3. The name Jesus was given to the Holy Child at God's command (Luke 1:31). The Holy Name is all-powerful because of the Person who bears it; we honor it because of the command of Christ, that we should pray in His Name and because it reminds us of all the blessings we receive through our Holy Redeemer. [...]. By means of this devotion we also make amends for improper use of the Holy Name."1

Be honest--in what context do you most often hear the name of Jesus? I'd hazard a guess that it's when someone has stubbed a toe, been cut off of in traffic, or is otherwise frustrated. Why should the name of our Lord be used as a swear word? Do we profane anyone else's name in this way? It's sort of an odd phenomon when you stop to think about it. There must be a reason, then, the second commandment is "You shall not invoke the name of the Lord, your God, in vain," and that reason can't be good. Let's take this month to keep holy the Lord's name and thwart the enemy's attempt cover its goodness.

1 Prayer Source: Prayer Book, The by Reverend John P. O'Connell, M.A., S.T.D. and Jex Martin, M.A., The Catholic Press, Inc., Chicago, Illinois, 1954