[the first part he's already lived through, first hand. the angels already made it clear what they plan on doing to him. and while their blade hadn't been able to do him any damage, jack knows it's only a matter of time before they try again. and the next time, he knows they'll be better prepared. he can only hope that sam and dean aren't caught in the crossfire.]

Lucifer didn't care about my mom.

[that part he knows for sure. if he had, he would've been there. would have been the one to protect his mom instead. wouldn't have tried to reach out to him in the way he did]

I...don't know why he made me. But I don't care. He's not my real father, and he never will be.

[that role will always firmly sit on castiel's shoulders, dead or alive]