After holding their own view for some years the four cities accepted the Confession of Augsburg, and were merged in the general body of Lutherans; but Zwingli's position was incorporated in the Helvetic Confession.
About this time he read Bucer's commentaries on the Gospels and the Psalms and also Zwingli's De vera et falsa religione; and his Biblical studies began to affect his views.
Luther, for instance, would not tolerate Zwingli's view on the Lord's Supper, while Zwingli was willing to fraternize with him notwithstanding this difference."
He left no writings except a few letters which are preserved in Zwingli's works.
Philip of Hesse was attracted by Zwingli's energy, and was eager that the northern reformers should be brought into closer relations with the south.
The circumstances and surroundings of Zwingli's early life were thus dissimilar from those of his contemporary, Martin Luther.
They proved the occasion of a conflict with Luther which was never settled, but in the meantime more attention was attracted by Zwingli's denunciation of the worship of images and of the Roman doctrine of the mass.
But the close of Zwingli's life was brought about by trouble nearer home.
Zwingli's theological views are expressed succinctly in the sixtyseven theses published at Zurich in 1523, and at greater length in the First Helvetic Confession, compiled in 1536 by a number of his disciples.'
All rules and regulations about the public worship, doctrines and discipline of the Church were made in Zwingli's time, and with his consent, by the council of Zurich, which was the supreme civil authority in the state.
Zwingli's most important writings are - Von Erkiesen and Fryheit der Spysen (April 1522); De Canone Missae Epichiresis (September 1523); Commentarius de Vera et Falsa Religione (1525); Vom Touf, vom Wiedertouf, and vom Kindertouf (1525); Ein klare Unterrichtung vom Nachtmal Christi (1526); De Providentia Dei (1530); and Christianae Fidei Expositio (1531).
Jackson's book gives a chapter on Zwingli's Theology by Prof. F.
Foster, and full details of further information on the subject, together with a list of modern English translations of Zwingli's works.
He became Zwingli's best helper, and after more than a year of earnest preaching and four public disputations in which the popular verdict had been given in favour of Oecolampadius and his friends, the authorities of Basel began to see the necessity of some reformation.
For translations of these, as well as of Zwingli's Reckoning of his Faith, and of the Tetrapolitan Confession, see H.
Zwingli attacked the weakest part of Luther's theory - the ubiquity of the body of Christ; and Luther attacked Zwingli's exegesis of the words of the institution.
But he chanced upon some of Zwingli's works and Bullinger's commentaries on St Paul's epistles; and after some molestation in England and some correspondence with Bullinger on the lawfulness of complying against his conscience with the established religion, he determined to secure what property he could and take refuge on the continent.
There he married Anne de Tserclaes, and later on he proceeded by way of Basle to Zurich, where his Zwinglian convictions were confirmed by constant intercourse with Zwingli's successor, Bullinger.