New American Standard Bible (NASB)
1 Samuel 27
6 So Achish gave him Ziklag that day; therefore Ziklag has belonged to the kings of Judah to this day.
7 The number of days that David lived in the country of the Philistines was a year and four months.
8 Now David and his men went up and raided the Geshurites and the Girzites and the Amalekites; for they were the inhabitants of the land from ancient times, as you come to Shur even as far as the land of Egypt.
9 David attacked the land and did not leave a man or a woman alive, and he took away the sheep, the cattle, the donkeys, the camels, and the clothing. Then he returned and came to Achish.
10 Now Achish said, "Where have you made a raid today?" And David said, "Against the Negev of Judah and against the Negev of the Jerahmeelites and against the Negev of the Kenites."
11 David did not leave a man or a woman alive to bring to Gath, saying, "Otherwise they will tell about us, saying, ’So has David done and so has been his practice all the time he has lived in the country of the Philistines.’"
12 So Achish believed David, saying, "He has surely made himself odious among his people Israel; therefore he will become my servant forever."
1 Samuel 28
1 Now it came about in those days that the Philistines gathered their armed camps for war, to fight against Israel. And Achish said to David, "Know assuredly that you will go out with me in the camp, you and your men."
2 David said to Achish, "Very well, you shall know what your servant can do." So Achish said to David, "Very well, I will make you my bodyguard for life."
3 Now Samuel was dead, and all Israel had lamented him and buried him in Ramah, his own city. And Saul had removed from the land those who were mediums and spiritists.
4 So the Philistines gathered together and came and camped in Shunem; and Saul gathered all Israel together and they camped in Gilboa.