God Spoke From The Burning Bush

After about 40 more years, God spoke to Moses from a bush that was on fire but didn`t burn. God sent Moses back to Egypt to lead the Hebrews out of slavery, and into the land promised to Abraham. God demonstrated His power to Moses and revealed to Him His holy Name "YHVH" or "Yaweh" (Jehovah became a popular pronunciation in the 16th century through German translators although there is no "J" sound in the Hebrew).

Link: https://bible-history.com/old-testament/moses