In the end, did he prove himself to be the good man you know here in Luceti? I am not, of course, condoning his actions... but as he is now, in this place, as a good man...

...why not take it as an opportunity to get to know your father?

[As much as Luke must want to be able to, there's nothing he can do here in Luceti. Spock feels for Luke though, and wishes he could do more. But he wasn't Obi-wan.]