'Princes' in the Bible

And the princes of the Philistines went forth; and it came to pass, whenever they went forth, that David succeeded better than all the servants of Saul; and his name was much esteemed.

And the princes of the Philistines said, What are these Hebrews? And Achish said to the princes of the Philistines, Is not this David, the servant of Saul the king of Israel, who has been with me these days, or these years, and I have found nothing in him since the day of his falling away to me to this day?

But the princes of the Philistines were wroth with him; and the princes of the Philistines said to him, Make the man return, that he may go again to his place where thou hast appointed him, that he go not down with us to the battle, that in the battle he be not an adversary to us; for wherewith should this fellow reconcile himself to his master? should it not be with the heads of these men?

And Achish answered and said to David, I know that thou art acceptable to me, as an angel of God; nevertheless the princes of the Philistines have said, He shall not go up with us to the battle.