Need help in creating a solid character. This question is not about builds and feats, but only about the very nature and idea.
Introductory concepts:
1. Half-orc.
2. Paladin.
3. On some moment, the Abyss start to speak 'throw him'. It's a shock and horror for him and he is unable to full control it, only partially (so as not to do evil).
Technically it will be two levels of paladin and oracle after. Or alternately, we'll see. As oracle, he'll get an Outer Rifts Mystery (and it will exactly Abyss, yes). As oracle's curse he'll have the Tongues (with abyssal language certainly) and The Powerless Prophecy (with half-orc's sacred tattoo the idea will be that in these tattoos writings his future and his mission, but he is unable to decipher it; and they appeared that day when the Abyss 'opened' in him). Curses will be two because of archetype. Last but not least, his mind a bit shaken from it all, and his wisdom will be only 7 .))
That's the idea, now I want you to help me to enrich it with details. First of all, how does the unfortunate paladin will live with this event, as he became "the Oracle of the Abyss"? What will he do? How will this affect the codex? How he should behave in order to combine these two opposite vectors?
Please help me to come up with the backstory of the guy and his current. I like this dilemma, the drama of the character. And I want to develop this in something that will beautifully and intelligently fit into the world of Golarion.