It appears that Knox had been reported to the Regent by some of the clergy, or by rumour, as a heretic and seducer of the people.

But Knox had learned that the "dew of the heavenly grace" had quenched her displeasure, and he hoped that the Regent would be as clement to others in his case as to him.

Therefore he returns to his attitude in the letter to his Berwick congregation (1552).
He calls for no Jehu, he advises no armed opposition to the sovereign, but says of "God's chosen children" (the Protestants), that "their victory standeth not in resisting but in suffering," "in quietness, silence, and hope," as the Prophet Isaiah recommends.

The Isaiahs (however numerous modern criticism may reckon them) were late prophets, not of the school of Elijah, whom Knox followed in 1554 and 1558-59, not in 1552 or 1555, or on one occasion in 1558-59.

"The Elect of God" do not "shed blood and murder," Knox remarks, though he approves of the Elect, of the brethren at all events, when they _do_ murder and shed blood.
Meanwhile Knox is more than willing to run the risks of the preacher of the truth, "partly because I would, with St.Paul, wish myself accursed from Christ, as touching earthly pleasures" (whatever that may mean), "for the salvation of my brethren and illumination of your Grace." He confesses that the Regent is probably not "so free as a public reformation perhaps would require," for that required the downcasting of altars and images, and prohibition to celebrate or attend Catholic rites.
Thus Knox would, apparently, be satisfied for the moment with toleration and immunity for his fellow-religionists.