'Guard' in the Bible

The LORD God took the man and placed him in the Garden of Eden in order to have him work it and guard it.

that he locked them up in the prison dungeon operated by the captain of the guard, the very place where Joseph was imprisoned.

The captain of the guard entrusted them to Joseph's custody, who took care of them, since they were to remain there in custody for a number of days.

Let them collect all the food during the coming fruitful years, store up the grain in cities governed by Pharaoh's authority, and place it under guard.