1 Samuel 26:3
And Saul pitched in the hill of Hachilah, which is before Jeshimon, by the way. But David abode in the wilderness, and he saw that Saul came after him into the wilderness.
Cross-reference
1 Samuel 26:1
Historical context
In 1 Samuel 26:1, the Ziphites report David's location to Saul, explaining why Saul is now camped at Hachilah in the main verse.
1 Samuel 23:19
Parallel
In 1 Samuel 23:19, the Ziphites similarly betray David to Saul at an earlier occasion, showing a pattern of betrayal.