Ecclesiastical affairs were, as a matter of course, wholly under the management of the cantonal and municipal authorities, and Zwingli was content that it should be so.
Zwingli and Calvin on the other hand prefer the positive view of law as instituted by God far back in history in the days of the Old Covenant; but,, when exegesis or controversy puts pressure upon them, they fall into line and reiterate the appeal to a Natural Law.
They taught the Apostles' Creed, rejected Purgatory, the worship of saints and the authority of the Catholic Church, practised infant baptism and confirmation, held a view on the Sacrament similar to that of Zwingli, and, differing somewhat from Luther in their doctrine of justification by faith, declared that true faith was "to know God, to love Him, to do His commandments, and to submit to His will."
He sought to establish a via media between the doctrines of Luther and Zwingli, and vainly hoped to obtain for it Luther's acceptance.
In theology he followed Zwingli, and at the sacramentarian conferences of Heidelberg (1560) and Maulbronn (1564) he advocated by voice and pen the Zwinglian doctrine of the Lord's Supper, replying (1565) to the counter arguments of the Lutheran Johann Marbach, of Strassburg.