Civill Soveraigne If A Christian, Is Head Of The Church

In His Own Dominions

From this consolidation of the Right Politique, and Ecclesiastique in
Christian Soveraigns, it is evident, they have all manner of Power over
their Subjects, that can be given to man, for the government of mens
externall actions, both in Policy, and Religion; and may make such
Laws, as themselves shall judge fittest, for the government of their
own Subjects, both as they are the Common-wealth, and as they are the
Church: for both State, and Church are the same men.

If they please therefore, they may (as many Christian Kings now doe)
commit the government of their Subjects in matters of Religion to
the Pope; but then the Pope is in that point Subordinate to them, and
exerciseth that Charge in anothers Dominion Jure Civili, in the Right of
the Civill Soveraign; not Jure Divino, in Gods Right; and may therefore
be discharged of that Office, when the Soveraign for the good of his
Subjects shall think it necessary. They may also if they please,
commit the care of Religion to one Supreme Pastor, or to an Assembly of
Pastors; and give them what power over the Church, or one over another,
they think most convenient; and what titles of honor, as of Bishops,
Archbishops, Priests, or Presbyters, they will; and make such Laws for
their maintenance, either by Tithes, or otherwise, as they please,
so they doe it out of a sincere conscience, of which God onely is
the Judge. It is the Civill Soveraign, that is to appoint Judges, and
Interpreters of the Canonicall Scriptures; for it is he that maketh them
Laws. It is he also that giveth strength to Excommunications; which but
for such Laws and Punishments, as may humble obstinate Libertines, and
reduce them to union with the rest of the Church, would bee
contemned. In summe, he hath the Supreme Power in all causes, as well
Ecclesiasticall, as Civill, as far as concerneth actions, and words, for
these onely are known, and may be accused; and of that which cannot be
accused, there is no Judg at all, but God, that knoweth the heart.
And these Rights are incident to all Soveraigns, whether Monarchs, or
Assemblies: for they that are the Representants of a Christian People,
are Representants of the Church: for a Church, and a Common-wealth of
Christian People, are the same thing.

Cardinal Bellarmines Books De Summo Pontifice Considered

Though this that I have here said, and in other places of this Boo