Why even have PoG when you can get rid of PoDC and use PoBH exclusively? Just change the terms of mining rewards. PoBH distributes 100%. 90% goes to wallet and 10% of that goes to tithing as a split payment... isn't that true tithing where you give 10% of your earnings? Have it automatically solo mine with no biblepay.conf . All you need to participate it just keep the wallet running 24/7. The algorithm wouldn't be based on hash power but some other algorithm that is more equitable where you are rewarded for running the network.
POBH makes sense, and is easily explained to anyone that's mined before.
To piggyback, why not keep PODC as an option for those that don't like the tithe concept? If it's preferred to use POBH, then make the PODC rewards less proportionally. That way one can go the tithing route, or one can do PODC and accrue other coins/tokens simultaneously, if that's their interest.