 Kabbalists regard the meaning of God’s sacred speech, the Hebrew text of the Bible, as infinite, finding significance even in its smallest particles—not only the divine words but also their letters (which are also numbers) and even the shapes of those letters. The most powerful words are God’s names, the holiest of which, the Tetragrammaton, cannot be uttered; written as YHWH, it is pronounced Adonai, a spoken name like Elohim, Ehyeh, El Shaddai and others used of God in the Hebrew Bible. Other words of great power are the names of the Sefirot, which are unknown, as such, to the Bible; they are names not of God but of aspects or manifestations or emanations of divinity.