If anyone in Cheliax asked him this, it would be very obvious what they were planning and heretical to answer honestly (this thought is shot down by deeper desires, waving a rationalization-flag that looks vaguely like 'different context, conclusion inapplicable, you probably had a good previous reason for saying true things to Merrin so just keep doing that')
"I suppose the classic plan is to become a lich, an undead version of a mage. It's only for wizards or maybe a sorcerer who got very lucky on exact spells, or I suppose clerics of Urgathoa; and so not applicable to this case, but then nothing else is applicable to this case either. It requires the 6th circle of casting. Most wizards who try it fail and die. All of those who succeed will be insane in the way of liches, which often lends itself to mad plans against the living which results in the lich being hunted down inside of its first decade or first century. And then even liches who've lasted through millennia sometimes still die, for example because Tar-Baphon enslaves them for a mad attempt at world domination. From which any reasonable person would conclude that liches are just slightly longer-lived than mortals and will face Pharasma's judgment in their due time. It's a high-profile example from my own perspective, because the Church of Asmodeus has to expend energy on mind-screening our wizards for early signs of that heresy or propagandizing them against it; Chelish wizards sometimes decide that they'd like to sacrifice their long-term future in Hell for the lifeless existence of an undead for a fancied millennium."
"The country of Galt devised an artifact guillotine, the Final Blade, which traps all the souls of those it kills; a threat against the few Good people who might defy them, and a supposed mercy to the many Evil people of their own government that they find occasion to execute. It's a stupid idea; at some point someone will destroy the artifact and free the souls for judgment. Hell hasn't even bothered to post a bounty on destroying them, because it is inevitable and Hell is patient. If no mortal government or adventurer got around to it for a thousand years, the Morrigna would show up, and if those failed the Maruts, and I don't know what comes after Maruts because nothing of Golarion has ever earned it."
"The Queen of Cheliax sometimes finds it amusing to turn people into statues, ward them against lesser divinations, and bury them far underground. The Church tolerates it because it gives the Queen some threat to hold over the sort of Asmodean whom we've successfully taught to not fear Hell that much. More importantly, because eventually those statues will be found and shattered. If you put a statue into a Bag of Holding and tore the bag to scatter its contents into the Astral Plane, which usually suffices to lose a thing forever, the statue would be found by Morrigna soon enough. If Heaven tried to guard a statue, Hell would invade and Maruts would fight on Hell's side."
"This entire situation is -- I forget the {Baseline} word -- the balance of a game in which Hell and Cheliax have already made sensible moves to cut off their opponents' possible moves. For example. While it is hard for ordinary people to be fairly judged as Good, never mind wizards who've spent years serving the purposes of Hell and Cheliax, that leaves open the possibility of unfair judgment. The 5th-circle cleric spell Atonement, which costs forty times the annual earnings of an average laborer, can do the equivalent of a reset on all past deeds and directly change an alignment to Good -- provided the atoner sincerely regrets their past decisions, and didn't perform them with the intent to later cheat by Atonement. Our higher wizards could afford that spell, cast outside Cheliax, and our 5th-circles could escape the country by Teleport if they tried. We therefore require our upper 4th-circles to sell their souls to Hell, which results in them going to Hell regardless of all other deeds and bypassing judgment. If they refused to do so, they would be Maledicted to Hell instead -- a 4th-circle cleric spell which sends someone to the lower plane of the god who granted the Malediction, again regardless of past good deeds and Pharasma's judgment. In a way, you could say that Hell is fairer than Pharasma, Who allows soul-sales under circumstances like that. Hell could pay a pittance for souls if they chose, for how little choice the seller has. And yet Hell nonetheless offers good value to our wizards, in the form of permanent Arcane Sight or similar benefits, even when they'd certainly go to Hell either way."
"Clerics can't sell their souls, in general. So the Church makes sure that its own 4th-circles at some point make a very Evil choice of the sort that they could not sincerely regret and Atone for. Xovaikain is one of several afterlives that are worse than Hell; where Hell torments for obedience, punishment for past transgressions, and to shape its souls into devils, Xovaikain is operated by the god Zon-Kuthon, whose [utilityfunction] was inverted by the Dark Tapestry upon an ancient god of Chaotic Good, to create a god that hates joy and beauty and prizes pain and suffering above all else. Shortly after reaching 4th circle, the Church presents you with a choice between being Maledicted to Xovaikain by an allied Kuthite cleric, or a relatively innocent family of peasants being Maledicted to Xovaikain in your place. It's not meant to be a difficult choice and I don't think I've ever heard of anyone hesitating about it for a moment. The point is that to Atone for that choice, a former cleric would have to be the sort of person who could sincerely regret that they didn't go to Xovaikain instead of that family, and be ready to go to Xovaikain in another's place if faced with the same choice again; this is unlikely for almost anyone on the face of Golarion, let alone a former cleric of Asmodeus. So clerics don't need to consider the question of whether we could successfully Atone our way out of Hell, and the Church doesn't need to worry significantly about us having a change of heart and defecting."
"There is no known spell Benediction to do the opposite of Malediction. I believe this not only because the Church told me so, but because I know as a matter of geopolitics that some rulers of countries with obviously Lawful Evil temperaments nonetheless try to do Good deeds or fund Good churches in usually futile attempts to stay out of Hell. They would never bother if a Benediction spell existed. I'd guess the Good gods have agreed among themselves never to grant it, so that rulers and others sufficiently wealthy are forced to try to be Good if they want to stay out of the lower planes, and can't just take a cheaper alternative."