Erastianism

The long Parliament, however, had passed ordinances which made a complete revolution in Church government and in public worship.

The new system was, in principle, scarcely less Erastian than that which it displaced.

The houses, guided chiefly by the counsels of the accomplished Selden, had determined to keep the spiritual power strictly subordinate to the temporal power.

They had refused to declare that any form of ecclesiastical polity was of divine origin, and they believed that, from all the church courts, an appeal should lie in the last resort to Parliament.

Replacement theology? Peter baptism.

You believe that the state should be an instrument of the church, and the church an instrument of the state, Erastianism? That sounds like the medieval papacy.

Jesus said his kingdom's not of this world.

Oh, yes it is.