[Sundae]

How can a devout Christian disregard the Ten Commandments?
Jesus never refuted the Commandments, they are still there as the gold standard.

God is omniscient. If he was that stressed about wanking and smoking, he'd have managed to get that in somewhere. He was not impressed by lying. He told Moses that and Moses passed it on. Forget the other two, this is what you need to work on.

I don't know you well enough to make a point of any of the others, but in general I think you should take more care about the old Top Ten and stop worrying about genitals.

I live in a country where the majority of people self-identify as Christians, but a poll identifying the Ten Commandments gave a mixture of the Seven Deadly Sins (from the film, not from Pope Gregory) and the Seven Dwarves.

Wanky and Smokey did not feature in any of the three.
Liar, liar, pants on fire did.

Hope this helps.