NET

1 In those days the Philistines gathered their troops for war in order to fight Israel. Achish said to David, “You should fully understand that you and your men must go with me into the battle.”

Darby

1 And it came to pass in those days that the Philistines gathered together their armies for warfare to fight against Israel. And Achish said to David, Know thou assuredly that thou shalt go out with me to the camp, thou and thy men.

KJV

1 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.