Thematic Bible: David takes refuge at

Then David arose and fled that day from Saul, and went to Achish king of Gath. But the servants of Achish said to him, "Is this not David the king of the land? Did they not sing of this one as they danced, saying, 'Saul has slain his thousands, And David his ten thousands'?" David took these words to heart and greatly feared Achish king of Gath. read more.
So he disguised his sanity before them, and acted insanely in their hands, and scribbled on the doors of the gate, and let his saliva run down into his beard. Then Achish said to his servants, "Behold, you see the man behaving as a madman. Why do you bring him to me? "Do I lack madmen, that you have brought this one to act the madman in my presence? Shall this one come into my house?"

So David arose and crossed over, he and the six hundred men who were with him, to Achish the son of Maoch, king of Gath. And David lived with Achish at Gath, he and his men, each with his household, even David with his two wives, Ahinoam the Jezreelitess, and Abigail the Carmelitess, Nabal's widow. Now it was told Saul that David had fled to Gath, so he no longer searched for him. read more.
Then David said to Achish, "If now I have found favor in your sight, let them give me a place in one of the cities in the country, that I may live there; for why should your servant live in the royal city with you?" So Achish gave him Ziklag that day; therefore Ziklag has belonged to the kings of Judah to this day. The number of days that David lived in the country of the Philistines was a year and four months.