Your question is certainly interesting and poses a unique answer. I believe the answer is that there is no one answer. To be more clear, this will depend on how conservative or orthodox the church is. Some religions may find it quite acceptable to invest in the financial market, as this is certainly legitimate, and can be a viable means of generating the funds needed to sustain a family. However, this is not the case for all beliefs and therefore, you should check with your specific church or religion to ascertain their view on the matter. If the church is particularly conservative, they may see the stock market as a form of gambling, and subsequently frown upon this endeavor.