1 Samuel 28:1–2

In those days the Philistines gathered their forces to fight against Israel. Achish said to David, “You must understand that you and your men will accompany me in the army.”

David said, “Then you will see for yourself what your servant can do.”

Achish replied, “Very well, I will make you my bodyguard for life.”

At that time, the Philistines gathered their military units into one army to fight against Israel. So Achish said to David, “You know, of course, that you and your men must march out in the army with me.”

David replied to Achish, “Good, you will find out what your servant can do.”

So Achish said to David, “Very well, I will appoint you as my permanent bodyguard.”

About that time the Philistines mustered their armies for another war with Israel. King Achish told David, “You and your men will be expected to join me in battle.”

“Very well!” David agreed. “Now you will see for yourself what we can do.”

Then Achish told David, “I will make you my personal bodyguard for life.”

Now in those days the Philistines gathered their forces for war to fight against Israel. So Achish said to David, “Certainly you realize that you must go out with me in the army, you and your men.” David said to Achish, “Very well, you will know what your servant can do.” Achish said to David, “Very well, I will make you my bodyguard for life.”

And it came to pass in those days, that the Philistines gathered their armies together for warfare, to fight with Israel. And Achish said unto David, Know thou assuredly, that thou shalt go out with me to battle, thou and thy men. And David said to Achish, Surely thou shalt know what thy servant can do. And Achish said to David, Therefore will I make thee keeper of mine head for ever.