If you're a house wife is it okay to not have your own income?

I have been studying the bible for years and I originally thought I could write books on religion and sell it but what I am considering now is to share my knowledge for free and not monetize it. If I do not monetize it, I will need to rely on something else for income, either a husband or a second job on top of my religious activities.

If you're a house wife is it okay to not have your own income?
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