As a preacher of the gospel, it is assumed that you believe in the existence of God, the creator of everything. It’s is also assumed that you have a good understanding of the nature of this God.

If they claim to understand their God and his mysterious ways then I expect everyone of them to understand the basic principle of most of their God’s creation.

It doesn’t make much sense to me that you understand a God who created the universe and you don’t understand the basic principles of his creations. If you cannot grasp the basic knowledge of planetary systems, evolution, ecology etc how then can you claim to know and understand a god that made them all?

There is really nothing much such a preacher can tell me because he basically doesn’t know more than he has been told by his religious mentors. He or she doesn’t really understand how any of God’s creation works. He or she is stereotyped.

You cannot claim to understand the spiritual when you can’t comprehend basic things in the physical. The spiritual doesn’t work independent of the physical according to various religious texts.