Thayer's Greek Lexicon

 Elijah = "my God is Jehovah"
1. a prophet born at Thisbe, the unflinching champion of the
theocracy in the reigns of the idolatrous kings Ahab and Ahaziah.
He was taken up to heaven without dying, whence the Jews expected
he would return just before the advent of the Messiah, whom he
would prepare the minds of the Israelites to receive.