The Philistines: David: had a Guard Composed of

Benaiah son of Jehoiada was over the Cherethites and Pelethites; and David’s sons were priestly leaders.

…therefore this is what the Lord GOD says: Behold, I will stretch out My hand against the Philistines, and I will cut off the Cherethites and destroy the remnant along the coast.

Woe to the dwellers of the seacoast, O nation of the Cherethites! The word of the LORD is against you, O Canaan, land of the Philistines: “I will destroy you, and no one will be left.”