@aristokratos Glad you're being blessed by this. Jonathan didn't have to turn against his dad in any violent way, he could have simply left him and stuck with David.
Though Jonathan was a good man, he died before his time because sentiments wouldn't allow him do that.
We need to be brave enough to move when we should and be where God is, not where God was.
Sentiments hinder people from being all God has for them to be.
Remember that at least 400 men came out to join David and he became their leader/commander. God preserved these men and they enjoyed the kingship of David much later. Jonathan could have been one of them. He didn't have to fight against his father, he just should have left him.
Thanks for the expository explanation, I have learnt much.
Though I feel Jonathan couldn't have easily made that decision and Saul's mistake affected his household. We both know almost everyone was wiped out later on, I feel Jonathan might not have had a place in David's kindom