Zwingli testified at Balthasar Hubmaier’s trial as follows:
Doctor Balthasar hatt grett, man moge der oberkeit nienderth mit bas abkommenn, dann mit dem widertouff. — Zwingli.
And the council passed sentence of exile. Because the Anabaptists were viewed not so much heretics (which they were) as anarchists. The council could deal with heretics. Anarchists, though, were a cancer that had to be excised without mercy.