The Anointing of King David

We all love a King David story we all want to be part of King David. What if you are the one that don't get any type of war you just graduated? Will you still rejoice with your brothers and sisters at commencement day or will you quietly slip away into a corner taking off your robe and your hat and saying hmm I guess I wasn't good enough"? That what he sees is what the brothers were probably feeling because here we're in chapter 16 which is very pivotal.