The Resurrection

[Sheldon]

[...] I also don't believe deities are possible, and for the same reason. 

NB Those are not beliefs.

This depends on how you define "belief." 

No it doesn't, since (in that assertion) I expressed no belief, only disbelief, which is not an assertion or statement about its truth or falsity. 

Here, "belief" is anything a person holds to be true. 

Correct, and I made no such claim (in that assertion). 

It might help in future if you responded to what was said, and not some straw man. 

Here it is again:

I don't believe resurrections are possible, and I also don't believe deities are possible, and for the same reason. 

NB Those are not beliefs.

That assertion does not expresses a belief, but the lack of it. 

But of course materialist metaphysics, which you appear to believe, 

I expressed no such belief, nor do I hold any such belief, you seem incapable of nuanced thinking, or your grasp of language is inadequate. 

Do you think materialism, and disbelieving anything exists beyond the material,  are the same? If you said yes, then there's your error, you might want to take some care and examine why they are in fact not the same. Here's a clue, one is a claim to believe something, the other expresses disbelief in a claim. 
If someone presents a jar containing hundreds of coloured marbles, and claims there is an odd number, you can disbelieve the claim, without claiming there is an even number.

Sheldon: I don't believe resurrections are possible, and I also don't believe deities are possible, and for the same reason.

I'm not saying they're BAD beliefs

They're not beliefs at all.