A Rose Is a Rose
A rose is a rose is a rose. This dictum reinforces the adage that a rose by any other name is still a rose. The idea is that the essence of the rose is not conditioned by what name is attached to it. It is its res, not its nomina, that determines what it is. In different languages, the same flower is known by different names, but it is still the same flower.
When we apply this idea to theology things get a bit more complicated. Indeed the rose adage has been transferred indiscriminately to religion in order to create a theological concept. The concept is: “God by any other name is still God.” Now certainly, it is true that the immutable essence of God is not changed by the alteration of His name. In English, we may say “God,” in German “Gott,” in Greek “Theos,” yet all these names or words are used to point to the same Deity.
Beyond this, however, things get murky. It is a quantum leap to go from saying that God by any other name is still God, to saying that all the great religions in the world believe in the same Being though they call Him different names.