The Danger of dwelling in a cave

1 Kings 18:1-4 (KJV) And it came to pass after many days, that the word of the LORD came to Elijah in the third year, saying, Go, shew thyself unto Ahab; and I will send rain upon the earth. 2 And Elijah went to shew himself unto Ahab. And there was a sore famine in Samaria. 3 And Ahab called Obadiah, which was the governor of his house. (Now Obadiah feared the LORD greatly: 4 For it was so, when Jezebel cut off the prophets of the LORD, that Obadiah took an hundred prophets, and hid them by fifty in a cave, and fed them with bread and water.)