1 Samuel 23:19-23 [Read also Psalm 54]
23:19 The Ziphites [saw opportunity to betray David; perhaps motivated by desire for profit or fear of facing similar fate as Nob (cf. 22:6-23)] went up to Saul at Gibeah [Saul’s capital] and said, “Is not David hiding among us in the strongholds [possibly caves] at Horesh, on the hill of Hakilah [Ziphites told Saul David’s location], south of Jeshimon?

23:20 Now, O king, come down whenever it pleases you to do so, and we will be responsible for handing him over to the king.”

23:21 Saul replied, “The LORD bless you for your concern for me [“a stereotyped expression that tells nothing about his piety (or lack of it)” (Expositor’s · Vol. 3 · p. 742)].

23:22 Go and make further preparation. Find out [Ziphites became Saul’s personal spies; Saul requested more specific information] where David usually goes and who has seen him there. They tell me he is very crafty [from same root as Hebrew word used to describe serpent in garden (Gen. 3:1) or a prudent individual (Prov. 12:23)].

23:23 Find out about all the hiding places [perhaps to avoid possibility of being ambushed by David in rugged and unfamiliar terrain] he uses and come back to me with definite information. Then I will go with you; if he is in the area, I will track him down among all the clans of Judah