Re: Husband plays the lottery behind my back
This whole discussion is FASCINATING to me. Partly because it is very similar to another conversation I see a lot: the Porn Issue.
A lot of men hide their porn viewing habits from their wives, because socially we're taught to believe there's something "wrong" with watching porn, yet it doesn't feel wrong to the person watching - they know they aren't trying to pursue sex or a relationship with the girls in the pornos. They're just getting a bit of visual stimulation to pleasure themselves with. What's the big deal? (On a related note, I read recently about a study the University of Winnipeg was trying to do, but they couldn't find any males who had never consumed porn for their control group... granted, it's cold up there in Winnipeg and there isn't much to do, but still... amazing right? But I digress).
Similarly, I doubt your SO sees any problem with playing the lottery, and is probably confused about your moral objection. I bet he doesn't want to hurt you, but doesn't see why he should stop. He enjoys doing it for whatever reason, and it is probably difficult for him to take your objections seriously because he doesn't understand them. NOT because he doesn't care. There's a difference.
The main issue here, which I think Elegirl might have mentioned already (she seems to have a pretty good head on her shoulders) is that you're expecting your husband to bend to your value system, but you aren't considering his. Did you discuss gambling prior to getting married? It's obviously important to you, so it sounds like something that should have come up.
If your marriage is somehow conditional on your spouse acting a certain way, you need to have discussed that PRIOR to getting married. You can't just mention partway in that you aren't okay with something, and expect everything to happen your way. He gets an equal say, which means either you compromise, or you agree to disagree (which means he can use his spending money for whatever he wants, including the lottery).
If religion is your reason (i.g. if you are worried your husband might not get into heaven or something), then I think you need to discuss the issue with a leader at your church or temple. If you do that, I would be careful for now to stick with the issue at hand - that your husband plays the lottery and you disagree with that (not that he's hiding lottery tickets - which is just your perception as far as I can tell). Then you can address that concern with your husband in a more specific way - that you are concerned for his afterlife, for example.
To me that sounds like quite a lot of money to spend on gambling, but as some have already said, it's all relative. Discuss with your spouse - maybe he can cut back, or stick to a spending limit.
But seriously, what makes you think it's okay to tell your spouse "No, you're not allowed to do this"?