As I said, it's only a contradiction to you because you automatically apply your osas presupposition that tells you it can't possibly be talking about a sanctified/saved person, so you instantly throw out that possibility and invented a sanctified unsaved person that the Bible itself says doesn't exist. THAT interpretation is what creates the contradiction in the passage.These "nominal" Christians/make believers certainly were "sanctified" or "set apart" (but not saved) as active participants in the Hebrew Christian community of believers, but you remain satisfied with your contradiction between Hebrews 10:10,14 and Hebrews 10:29 and are too committed at this point to abandon your biased agenda and accept the truth.
You are literally telling me to ignore the context of the chapter that plainly tells me what 'sanctified' means.