jaho Besides, there is the fact that Jaho or Iao was a "Mystery name" from the beginning, for and never came into use before King David. Anterior to his time, few or no proper names were compounded with Iah or Jah. It looks rather as though David, being a sojourner among the Tyrians and Philistines (2 Samuel), brought thence the name of Jehovah. www.theosociety.org/pasadena/sd/sd2-2-09.htm