1 Samuel 26:2-4

So Saul took 3,000 of Israel’s elite troops and went to hunt him down in the wilderness of Ziph. Saul camped along the road beside the hill of Hakilah, near Jeshimon, where David was hiding. When David learned that Saul had come after him into the wilderness, he sent out spies to verify the report of Saul’s arrival.