So, 2 Samuel 1. The long and short of it is, David finds out that Saul and Jonathan have been killed in battle, and he's pretty bummed about it. He laments their demise, and then he's like, 'Ok, back to business'. He finds out the Saul and Jonathan's killer, and he makes him pay. Get this, he even makes the guy carry around Saul and Jonathan's bones. Oh, and then David sings a song about Saul and Jonathan. Yup, it's a real tear-jerker.