""The First Blast of the Trumpet"" is a book written by John Knox, a Scottish Protestant reformer, in 1558. The book is a passionate call to arms against the Catholic Church and its leadership, arguing that they are corrupt and illegitimate. Knox argues that the Pope is the Antichrist and that the Catholic Church is a false church. He urges Protestants to take up arms against the Catholic Church and to overthrow its leaders. The book was highly controversial...