Wishart, however, was well acquainted with Helvetic doctrine; he had, as we saw, translated a Helvetic Confession of Faith, perhaps with the view of introducing it into Scotland, and Knox may already have imbibed Calvinism from him.

He was not yet--he never was--a full-blown Presbyterian, and, while thinking nothing of "orders," would not have rejected a bishop, if the bishop _preached_ and was of godly and frugal life.

Already sermons were the most important part of public worship in the mind of Knox.
In addition to public catechising he publicly expounded, and lectured on the Fourth Gospel, in the chapel of the castle.

He doubted if he had "a lawful vocation" to _preach_.

The castle pulpit was then occupied by an ex-friar named Rough.