I loved "Forever" from the first episode, but that line made me fall head over heels for Abe. If you're not watching "Forever," the background is that our hero, Henry Morgan, cannot die. Well, he can die, but only for a moment, then he comes back, naked, in a body of water. He doesn't know how or why he ended up this way. He's lived for over 200 years and has always been a doctor; he is currently a medical examiner in New York City.
Through flashbacks we have seen Henry meeting his (late) wife during World War II; she was a nurse, and he a doctor with the US Army. In one scene, they are talking about an infant, rescued from the camps, for whom no relatives could be found. Henry asks "What will happen to him?" Abigail answers "Unless someone falls in love with him and adopts him, probably an orphanage somewhere." The shot then cuts to (adult) Abe, and you realize that he was that infant and that Henry and Abigail fell in love and adopted him.
Abe is now in his 70s, while Henry still looks to be in his 30s. In this most recent episode, Henry finds Abe's name on a client list at a sketchy youth and vitality clinic, sending Henry dashing to find out if Abe took the formula. Abe's response was (more or less) "Of course not! I am a doctor's son." As far as I can remember, this is the first time that either Abe or Henry has referred to other in father/son terms; they have mostly been shown living like roommates. In that same discussion, Abe says he worries about Henry and who will take care of Henry after he dies. It's an interesting take on familial relationships as one person ages and the other does not. But mostly I loved how solidly Abe identifies Henry and Abigail as his parents. There was no distinction that they were his adoptive parents; they were just his parents. Certainly adoption was different back then, but I still love Abe's response.
(Note: so far there has been very little reference to religion in the show, though Abe seems to believe in something greater. At one point when Henry is mourning Abigail and trying to figure out how to die permanently, Abe makes the point "What if you were made for something more?")