Bible Verses About Captain: King appoints

Therefore Saul removed him from him, and made him his captain over a thousand; and he went out and came in before the people.

And Absalom made Amasa captain of the host instead of Joab: which Amasa was a man's son, whose name was Ithra an Israelite, that went in to Abigail the daughter of Nahash, sister to Zeruiah Joab's mother.

And David numbered the people that were with him, and set captains of thousands and captains of hundreds over them.