Yahweh, or Yhwh, is a form of the Hebrew name for God in the Bible. It was originally revealed to Moses as four Hebrew consonants, YHWH, called the tetragrammaton. At one point, it became to be regarded by Jews as too sacred to be spoken aloud. Thus, the vowel sounds are uncertain. Over time, the name was replaced with Elohim, meaning “God”, and Adonai, meaning “My Lord”.