'Body guard' in the Bible

When Pharaoh was angry with some of his servants, he incarcerated me in custody of the captain of the bodyguard, along with Pharaoh's head chef.

There was a Hebrew young man incarcerated with us, who was also working as a servant to the captain of the bodyguard.

Ahimelech answered the king, "Who among all your officials is as faithful as David? He is the king's son-in-law, the captain of your bodyguard, and he's honored in your household.

David told Achish, "Very well, you will now see what your servant will do." Achish told David, "Very well, I'll appoint you as my permanent bodyguard."