Eliab his eldest brother heard when he spoke to the men; and Eliab's anger was kindled against David, and he said, Why are you come down? and with whom have you left those few sheep in the wilderness? I know your pride, and the naughtiness of your heart; for you have come down that you might see the battle.
And so David's brother Eliab saw David's interest in this thing, and he said to David, "Who's watching over your sheep back there in the wilderness kid? You better get on home in a hurry. I know your heart, you're just-dad probably didn't send you down here. You're just down to see what a war looks like and you go home in a hurry." His big brother is trying to sort of protect him.