After many days the word of the Lord came to Elijah, in the third year of the drought, saying, "Go, present yourself to Ahab; I will send rain on the earth."
References for 1 Kings 18:1
So Elijah went to present himself to Ahab. The famine was severe in Samaria.
Ahab summoned Obadiah, who was in charge of the palace. (Now Obadiah revered the Lord greatly;
when Jezebel was killing off the prophets of the Lord, Obadiah took a hundred prophets, hid them fifty to a cave, and provided them with bread and water.)
Then Ahab said to Obadiah, "Go through the land to all the springs of water and to all the wadis; perhaps we may find grass to keep the horses and mules alive, and not lose some of the animals."
So they divided the land between them to pass through it; Ahab went in one direction by himself, and Obadiah went in another direction by himself.
As Obadiah was on the way, Elijah met him; Obadiah recognized him, fell on his face, and said, "Is it you, my lord Elijah?"
He answered him, "It is I. Go, tell your lord that Elijah is here."