CHAPTER VI: KNOX IN THE ENGLISH PURITAN TROUBLES AT FRANKFORT: 1554-1555.
The consequences of the "Admonition" came home to Knox when English refugees in Frankfort, impeded by him and others in the use of their Liturgy, accused him of high treason against Philip and Mary, and the Emperor, whom he had compared to Nero as an enemy of Christ.
The affair of "The Troubles at Frankfort" brought into view the great gulf for ever fixed between Puritanism and the Church of England.

It was made plain that Knox and the Anglican community were of incompatible temperaments, ideas, and, we may almost say, instincts.

To Anglicans like Cranmer, Knox, from the first, was as antipathetic as they were to him.

"We can assure you," wrote some English exiles for religion's sake to Calvin, "that that outrageous pamphlet of Knox's" (his "Admonition") "added much oil to the flame of persecution in England.

For before the publication of that book not one of our brethren had suffered death; but as soon as it came forth we doubt not but you are well aware of the number of excellent men who have perished in the flames; to say nothing of how many other godly men have been exposed to the risk of all their property, and even life itself, on the sole ground of either having had this book in their possession or having read it." Such were the charges brought against Knox by these English Protestant exiles, fleeing from the persecution that followed the "Admonition," and, they say, took fresh ferocity from that tract.
The quarrel between Knox and them definitely marks the beginning of the rupture between the fathers of the Church of England and the fathers of Puritanism, Scottish Presbyterianism, and Dissent.