Jah

Jah ( /ˈdʒɑː/; Hebrew: יהּ‎ = Yah) is the shortened form of the divine name YHWH (also spelled Jehovah or Yahweh), an anglicized version of the Tetragrammaton (YHWH, Latin JHVH). The name is most commonly associated with the Rastafari movement or within the word hallelujah, although Christian groups may use the name to varying degrees. The name is used in some English Bible translations which reconstruct the Tetragrammaton. For example, Bibles published by Jehovah's Witnesses use a form of the name in over 400 languages. Other versions sometimes use the academic Hebrew reconstruction "Yah". Some languages use the letter "I" instead of "Y" or "J": This should not be confused with the phonetically, theologically, and historically unrelated Egyptian god Iah. Other languages use CH (Choctaw), S (Tongan), and Z (Chin).

Read more about Jah:  Usage, Music