Jon passes by Ned's statue, and this time he stops to look. "You are a Stark," Ned's voice-over recites. "You might not have my name, but you have my blood." Ned tells him this back in season one's second episode where they part for the last time. It's here that Ned promises to tell Jon about his mother the next time they meet, which of course never happens. It's assumed that Ned tells Jon this because the younger man was going off to take the Black at the Wall. The next time they would see each other, Jon would be safe from Robert's clutches and have no right to the throne, and thus could safely learn about his true parentage.