Read 1 Chronicles 27:6 Using Other Translations
This is that Benaiah, who was mighty among the thirty, and above the thirty: and in his course was Ammizabad his son.
This is the Benaiah who was a mighty man of the thirty and in command of the thirty; Ammizabad his son was in charge of his division.
This was the Benaiah who commanded David’s elite military group known as the Thirty. His son Ammizabad was his chief officer.