The followers of Yahweh found their champion in Elijah, whose story reflects the prophetic teaching of more than one age. His denunciation of the royal dynasty of Israel, and his emphatic insistence on the worship of Yahweh and Yahweh alone, illustrated by the contest between Yahweh and Baal on Mount Carmel, as told in 1 Kings 18, form the keynote to a period which culminated in the accession of Jehu, an event in which Elijah's chosen disciple Elisha was the leading figure

http://en.wikipedia.org/wiki/Ahab

 meaning "Yahweh is my God";

http://en.wikipedia.org/wiki/Elijah