1 Samuel 23:14-18

And David remained in the strongholds in the wilderness, in the hill country of the wilderness of Ziph. And Saul sought him every day, but God did not give him into his hand. David saw that Saul had come out to seek his life. David was in the wilderness of Ziph at Horesh. And Jonathan, Saul’s son, rose and went to David at Horesh, and strengthened his hand in God. And he said to him, “Do not fear, for the hand of Saul my father shall not find you. You shall be king over Israel, and I shall be next to you. Saul my father also knows this.” And the two of them made a covenant before the LORD. David remained at Horesh, and Jonathan went home.