This is the Second Commandment, and it includes not only swearing and blasphemy, but failure to honor the Name of God as sacred.
So, again, all those millions of men named Jesus in latin america, all those imperfect vessels who have been labelled with the name of The Most Perfect, are not, in and of themselves, living, breathing, walking examples of defaming the Name of the Divine?
You see, I trust, the difficulty of the proposition that a name, a spoken or written word, could be considered 'sacred', as that word itself is but an imperfect substitute for that which is attempting to be described in using it and is not the thing to which it is applied or which it is intended to indicate.