2 Samuel 23:23 - "... And David set him over his bodyguard."
2 Kings 25:8 - "In the fifth month, on the seventh day of the month - which was the nineteenth year of King Nebuzaradan, the captain of the bodyguard, a servant of the king of Babylon, came to Jerusalem."
The term "bodyguard" means exactly what it says. This is a person who is employed to "guard the body," that is, to protect another person, usually a sovereign, or, today, a head of state. However, very wealthy persons also employed bodyguards on occasion, just as today we can hire one if we wish.
Look in the yellow pages of your telephone directory, and you’ll find many listings for guards. You have your pick of residence security guards, sporting event guards, payroll escort guards, men in motorcycles, men in cars, men with …