Other words might easily be added which, by the disclosure of their original meaning, give us interesting hints as to the development of legal conceptions and customs, such as marriage, inheritance, ordeals, and the like. But it is time to cast a glance at theology, which, more even than jurisprudence, has experienced the influence of the Science of Language. What was said with regard to mythology, applies with equal force to theology. Here, too, words harden, and remain unchanged longer even than in other spheres of intellectual life; nay, their influence often becomes greater the more they harden, and the more their original meaning is forgotten. Here it is most important that an intelligent theologian should be able to follow up the historical development of the _termini technici_ and _sacrosancti_ of his science. Not only words like _priest_, _bishop_, _sacrament_, or _testament_, have to be correctly apprehended in that meaning which they had in the first century, but expressions like λόγος, πνεῦμα ἅγιον, δικαιοσύνη have to be traced historically to the beginnings of Christianity, and beyond, if we wish to gain a conception of their full purport. In addition to this, the Philosophy of Religion, which must always form the true foundation of theological science, owes it to the Science of Language that the deepest germs of the consciousness of God among the different nations of the world have for the first time been laid open. We know now with perfect certainty that the names, that is, the most original conceptions, of the Deity among the Aryan nations, are as widely removed from coarse fetichism as from abstract idealism. The Aryans, as far as the annals of their language allow us to see, recognized the presence of the Divine in the bright and sunny aspects of nature, and they, therefore, called the blue sky, the fertile earth, the genial fire, the bright day, the golden dawn their +Devas+, that is, their bright ones. The same word, +Deva+ in Sanskrit, _Deus_ in Latin, remained unchanged in all their prayers, their rites, their superstitions, their philosophies, and even to-day it rises up to heaven from thousands of churches and cathedrals,--a word which, before there were Brahmans or Germans, had been framed in the dark workshop of the Aryan mind.