Consubstantial: What Does That Mean?

But when we talk about the union of God the Father with God the Son, it is not enough to just say that they are the same. They are both God … one God in three unique Persons. By asking us to now use the word consubstantial when we pray the Creed (remember, the Creed is a statement of what we believe as Catholics) the Church is reminding us of the importance of professing that the Father and the Son are the exact same substance.