How you use someone’s name has everything to do with the level of respect and authority they represent to you. The reason God instructs us not swear by his name (or to use older language “to take his name in vain” is because God knows our tendency to use his name, along with the power and authority attached to it, for our own purposes which have nothing to do with God’s purposes. Doing so, not only harms others, it creates a world where each person gets to decide right and wrong for themselves. Such a world is incapable of producing peace, justice, and a human flourishing because within such a world humanity has no common ground to stand on.

Scripture - Exodus 20:7