We're incredibly lax on the god front, honestly. It's fine when we're interacting with the Crime god of Laxness and Impropriety, because we are one of his stealiest scoundrels.
Ranald doesn't like us because we're devoted to him; if we were devoted to being devoted to him we'd have taken the priest class. Ranald likes us because he's the god of all the things we are, like Ursun favoring the beariest bear in a forest.
Verena, on the other hand, is basically a (the?) Queen of Civilization. Doing things the right way is important to her because she's practically made out of 'right way particles'.
And we're pretty important, but not much more than the average noble, in terms of what she cares about. More importantly, we do a lot of stuff she would disapprove of, being as we are a law-skirting scoundrel who casts Lie magic and executes people without trial. We do basically nothing 'the right way'.
Eh, the law-skirting and trial things a bit of a grey area, mostly
As we are dealing with a different legal and values system
The truth part Verena's scripture is a thing
But there's enough open to interpretation there that one could argue that deceit based on the kind of exact words and unspoken assumptions that Mathilde's fond of could be allowed
And whether it covers illusions and false identities is arguable
Plenty of Grey Wizards are worshippers of Verena after all, so there's presumably a well-worn line of rhetoric over the matter
All the fish that Mathilde keeps tripping over largely comes from legitimate ventures or spoils from enemies of the Empire, and there's certainly no laws protecting loot taken from Skaven vaults or the like
(Well, there is the slight bit of embezzlement that Mathilde took part in for the first 7 years of her career, but I'm sure that's fine. She had student debt to pay
)
And the without trial thing is a definite case of values dissonance I think
Mathilde factually has the legal authority to make the call on whether someone is guilty and needs to die on her own should she deem it necessary
I'm quite certain that Verenan priests in similar circumstances don't worry themselves overmuch with ensuring everyone gets a full court case either
A devout Verenan should be concerned with being certain of guilt or innocence, but given the setting that doesn't necessarily mean the target gets to formally present themselves in court
And when it comes to that moral Grey area where her targets aren't necessarily guilty (like a certain late Tzar) well
Technically speaking, none of Verena's scriptures actually forbid that
Just to not be "a tool of injustice or heresy"
Though the degree to which you're even bound by tenets like that if you're a private worshipper and not a formal layperson of the Cult is a bit vague
At the very least it's not testing the boundaries any worse than Mathilde tests the Ranaldian "no violence except in self defense" rule