Formerly titled "A Godly Letter of Warning, or Admonition to the Faithful in London, Newcastle, and Berwick, 1554," this letter is written as a warning against defection from the Reformed religion and against giving countenance to the idolatrous worship then being practised, in England, by public authority.

Driven from England by Romanist persecution, Knox argues, "that a nation, because of the covenant obligation to live by God's laws, incurred corporate guilt for tolerating evil" (i.e. 'idolatrous' Catholicism).

Knox prophesied that if the people permitted Catholicism to remain in England, the nation would be subject to divine judgement, namely plagues. Knox cited the example of God's punishing the entire tribe of Benjamin, not because all were adulterers but because some were tolerated" (Christian History "John Knox: The Thundering Scot," Vol. 14, No. 2, p. 19).

The Mass was especially odious in Knox's sight and he "calls his people to separate from compromising associations with idolaters; the Lord's people must never condone false religion, or give the impression that corrupt worship is a matter of indifference" (notes Kevin Reed in his editor's note to this letter found in the the Selected Writings of John Knox, p. 146).

The editor of Knox's Works notes that "[t]his letter of Knox's is written in a very impressive and eloquent manner, highly characteristic of the author." Reed says it "breathes with a prophetic and apostolic spirit."

Knox speaks to our day as if he were standing right in front of us. Listen to the Reformer, "my admonition is, that even as you purpose and intend to avoid God's vengeance, both in this life and in the life to come; that so you avoid and flee, as well in body as in spirit, all fellowship and society with idolaters in their idolatry... For it is plain that the soul has neither life nor comfort, but by God alone, with whom idolaters have no other fellowship nor participation than the devils have" (cited in Kevin Reed, John Knox the Forgotten Reformer).

Romish idolatry still runs rampant today in many nations, not to mention numerous other devilish systems of deceit and false worship (e.g. secular Humanism, Socialism, pluralism, Fascism, godless democracy, independency, etc.). Most of these idolatrous manifestations of false gods are even countenanced and protected by civil authority.

The plagues of God (spiritual ignorance, moral relativism, AIDS/homosexuality, debt, godless public education, feminism, etc.) are also evident everywhere -- even in many so-called "churches." In the letter appended to this work, Bullinger, in answering "[w]hether obedience is to be rendered to a Magistrate who enforces idolatry and condemns true religion..." states, "death itself is far preferable to the admission of idolatry."

These powerful convictions, granted by the Holy Spirit to men such as Knox and Bullinger shook the nations (and this wasn't any laughing revival). Read Knox and the other old Reformers and see if "zeal for the Lord's house does not consume you." Anything less will not give the results that these men attained -- which included nations bowing to the Lordship of Christ, the overthrow of idolatry and superstition, and the sound of Psalmody echoing throughout the land!