P. Schaff relates
During Lent, 1522, Zwingli preached a sermon in which he showed that the prohibition of meat in Lent had no foundation in Scripture. Several of his friends, including his publisher, Froschauer, made practical use of their liberty. This brought on an open rupture. The bishop of Constance sent a strong deputation to Zurich, and urged the observance of the customary fasts. The magistracy prohibited the violation, and threatened to punish the offenders (April 9, 1522). Zwingli defended himself in a tract on the free use of meats (April 16). Von Erkiesen und Fryheit der Spysen. It is his first printed book. He essentially takes the position of Paul, that, in things indifferent, Christians have liberty to use or to abstain, and that the Church authorities have no right to forbid this liberty. He appeals to such passages as 1 Cor. 8:8; 10:25; Col. 2:16; 1 Tim. 4:1; Rom. 14:1–3; 15:1, 2.
On April 7-9, 1522 Zwingli and his colleagues and the representatives of the Bishop met in Zurich and debated the issue. The Bishop’s side lost. Or rather, was defeated in grand style.
The bishop of Constance issued a mandate to the civil authorities (May 24), exhorting them to protect the ordinances of the Holy Church. He admonished the canons, without naming Zwingli, to prevent the spread of heretical doctrines. He also sought and obtained the aid of the Swiss Diet, then sitting at Lucerne. Zwingli was in a dangerous position. He was repeatedly threatened with assassination. But he kept his courage, and felt sure of ultimate victory. He replied in the Archeteles (“the Beginning and the End”), hoping that this first answer would be the last.
And it all started with a sausage. It’s funny how little things can precipitate tremendous changes.
- Of Freedom of Choice in the Selection of Food (zwingliusredivivus.wordpress.com)