Saul commanded his servants, [saying], Commune with David secretly, and say, Behold, the king has delight in you, and all his servants love you: now therefore be the king's son-in-law.
Though he was just a very young fellow, he was set over a part of the army and these guys respected him so much, of course God's deliverance of the Philistine in his hand, that they just accepted him, but then trouble began to arise.