He stood and cried to the armies of Israel, and said to them, Why are you come out to set your battle in array? am I not a Philistine, and you servants to Saul? choose you a man for you, and let him come down to me.
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.