“And Achish answered and said to David, I know that thou art good in my sight, as an angel of God: notwithstanding the princes of the Philistines have said, He shall not go up with us to the battle.”
King James Version (KJV)
29:9 Angel of God - In whom nothing is blame - worthy. The Heathens acknowledged good spirits, which also they worshipped as an inferior sort of deities, who were messengers and ministers to the supreme God; Achish had learned the title of angels, from the Israelites his neighbours, and especially from David's conversation.