So they divided the land to explore. Ahab went one way by himself, and Obadiah went the other way by himself.

1 Kings 18:5
Then Ahab said to Obadiah, "Go throughout the land to every spring and every valley. Perhaps we will find grass to keep the horses and mules alive so that we will not have to destroy any livestock."

1 Kings 18:7
Now as Obadiah went on his way, Elijah suddenly met him. When Obadiah recognized him, he fell facedown and said, "Is it you, my lord Elijah?"

So they divided the land between them to pass throughout it: Ahab went one way by himself, and Obadiah went another way by himself.