1st Samuel 23:19

16 And Jonathan Saul's son arose, and went to David into the wood, and strengthened his hand in God.

17 And he said unto him, Fear not: for the hand of Saul my father shall not find thee; and thou shalt be king over Israel, and I shall be next unto thee; and that also Saul my father knoweth.

18 And they two made a covenant before the LORD: and David abode in the wood, and Jonathan went to his house.

19 Then came up the Ziphites to Saul to Gibeah, saying, Doth not David hide himself with us in strong holds in the wood, in the hill of Hachilah, which is on the south of Jeshimon?

20 Now therefore, O king, come down according to all the desire of thy soul to come down; and our part shall be to deliver him into the king's hand.

21 And Saul said, Blessed be ye of the LORD; for ye have compassion on me.

22 Go, I pray you, prepare yet, and know and see his place where his haunt is, and who hath seen him there: for it is told me that he dealeth very subtilly.