Ahab is king. After marrying Jezebel, he worshipped Baal (the rain god), built an altar in the house of Baal he built and also a sacred pole." Ahab did more to provoke the anger of the Lord, the God of Israel, than had all the kings of Israel who were before him" (1 Kings 16:29-34).
The prophet Elijah, whose name means Yahweh is God, tells Ahab what he has been told by the Lord, that a drought is coming (17:1-7).
Where does power lie? King Ahab lives in royal court, and has control over an army.
Elijah, a prophet, was first fed by ravens then stayed in the home of a widow who was so poor that she had only a handful of meal and a little oil in a jug. The Lord saw to it that she wouldn't run out of food. When her son became very ill, Elijah prayed to the Lord who listened, and the son revived (1 Kings 17:8-24).
After three years of drought, the Lord tells Elijah to go to Ahab. Risky because Jezebel has been killing the prophets of the Lord.