Baal was a phony god that was worshipped by many, including King Ahab and Jezebel.
Jehovah put it upon Elijah to prove to the people that he was the true God of Israel.
Satan created Baal to turn people away from Jehovah God.
It took Elijah to prove to the people that Baal was a fraud.
Elijah knew that he could show the people the truth and make Baal falter.
He told them to slaughter a bull and use it for a sacrifice on an altar.
Elijah told them that Baal would be the true God if he could burn the bull but no fire came.
But then Jehovah God sent down fire and burned the sacrifice and that put Baal to shame.
Even though Elijah had the wood and bull covered with water, both still burned.
The people saw that Jehovah is the true God, that was the lesson that they learned.
King Ahab and Queen Jezebel promoted Baal worship and it was something they came to regret.
Both of them ended up dead and God was pleased with Elijah who was the boldest of his prophets.