First Samuel Chapter 27

1 David said in his heart, I shall now perish one day by the hand of Saul. Nothing is better for me than that I should speedily escape into the land of the Philistines. And Saul shall despair of me, to seek me any more in any border of Israel, and so I shall escape out of his hand.
2 David arose and passed over, he and the 600 men with him to Achish the son of Maoch, king of Gath.
3 David lived with Achish of Gath, he and his men, each one with his household; David with his two wives, Ahinoam of Jezreel, and Abigail of Carmel, Nabal's former wife.
4 Saul was told that David had fled to Gath. And he never again looked for him.
5 David said to Achish, If I have now found grace in your eyes, let them give me a place in some town in the country so that I may live there. For why should your servant live in the royal city with you?
6 Achish gave him Ziklag that day. And Ziklag belongs to the kings of Judah to this day.
7 The number of days that David lived in the field of the Philistines was a year of days and four months.
8 David and his men invaded the Geshurites, the Gezrites, and the Amalekites. For they were the inhabitants of the land from the past days, as you come into Shur, even into the land of Egypt.
9 David struck the land, and did not keep alive man nor woman, and took away the sheep and the oxen and the donkeys and the camels and the clothing, and returned and came to Achish.
10 Achish said, Where have you made a raid today? And David said, Against the south of Judah, and against the south of the Jerahmeelites, and against the south of the Kenites.
11 David did not keep alive man or woman to bring news to Gath saying, Lest they should tell on us saying, So David did, and so has been his custom all the days he lived in the fields of the Philistines.
12 Achish believed David saying, He has made himself to be hated among his people Israel, and has become my servant forever.