Definition: "The Word Ether3," the Hebrew name for "ether," means "pure substance" or "the purest form." In Christianity, it was originally used to describe God's pure essence; in a literal sense, it refers to the primordial matter that created everything in the universe. The word is often used metaphorically in reference to a state of perfect purity, as in the concept of the "pure Spirit" described in Proverbs 8:24-31 or John 3:7.