Here is what you need to know.

There is no authority in the Bible to set up a Christian government. There are no instructions for this. Christians are called to be active citizens in a country, in Romans 13, for example. Christians are invited to participate in government and be supportive, but there is no authority given by Jesus to set up a government. That may have been attempted centuries ago in rare cases, but there was no authority given from Jesus or the Bible. That’s why you don’t see it today.