On Saturday, January 1, 1519, [Zwingli] presented himself to the assembled canons, and was formally inducted into his office as people’s priest. Much stress was laid upon his duty to preserve and increase the revenues of the cathedral. In reply Zwingli thanked them for electing him, requested their prayers and the prayers of the congregation, and then announced that he would begin the next day the continuous exposition of the Gospel of Matthew, not according to the Fathers, but according to the Scriptures themselves. This announcement made a decided sensation, as it was a marked deviation from the practice of following the pericopes and interpreting them patristically, and awakened some adverse criticism.
Of stalwart frame, above middle height, of a ruddy countenance and pleasing expression, he made a good impression upon spectators, and when he spoke he soon showed that he was an orator who could enchain the attention. All Zurich, and indeed all Switzerland, rang with his praise. And not only town people but the country folk also listened to him with delight. For the benefit of the latter he preached every Friday, which was market-day, in the market-place, and took the Psalms for continuous exposition. On Sundays in the cathedral he expounded during his first four years, and in this order, Matthew, Acts, I. Timothy, Galatians, II. Timothy, I. and II. Peter, and Hebrews.*
*S. Jackson, Huldreich Zwingli: The Reformer of German Switzerland (1484–1531) (pp. 122–123).