The fact that you serve a non-profit organization centered around a globally accepted religion and belief-structure, you are not tax-exempt. The organization itself is. According to your previous statements, it is you who is attempting to claim the Earth. Whether it is done in the name of God, for God, or with God's approval does not affect it's future ownership should you be allowed to possess Earth. It would still be your property and you would therefore be required to pay a tax to the majority of established governmental bodies.
Should you acquire a government position that allows you moderate control over the state of Michigan, i.e. Governor, you would still be required to follow Michigan's Constitution. By enacting a change of currency from the widely accepted US Dollar, to your theoretical Heavenly Currency, you would still be required (per section
408.476) to pay all citizens in US Dollars for work done.
Also, it is this thread's belief that once in office, you would attempt to force a mass-conversion to your religion, which has yet to be determined.
Article 1 Section 4 clearly states that all citizens of Michigan have freedom of worship and religious beliefs, therefore your actions would be found unconstitutional and in many ways, illegal. Again, if you perform an illegal act, you are contradicting the God whom you serve.