John Ogilvie's noble Scottish family was partly Catholic and partly Presbyterian. His father raised him as a Calvinist, sending him to the continent to be educated. There John became interested in the popular debates going on between Catholic and Calvinist scholars. Confused by the arguments of Catholic scholars whom he sought out, he turned to Scripture. Two texts particularly struck him: "God wills all men to be saved and come to the knowledge of the truth," and "Come to me all you who are weary and find life burdensome, and I will refresh you."
Slowly, John came to see that the Catholic Church could embrace all kinds of people. Among these, he noted, were many martyrs. He decided to become Catholic and was received into the Church at Louvain, Belgium, in 1596 at the age of 17.
John continued his studies, first with the Benedictines, then as a student at the Jesuit College at Olmutz. He joined the Jesuits and for the next 10 years underwent their rigorous intellectual and spiritual training. Ordained a priest in France in 1610, he met two Jesuits who had just returned from Scotland after suffering arrest and imprisonment. They saw little hope for any successful work there in view of the tightening of the penal laws. But a fire had been lit within John. For the next two and a half years he pleaded to be missioned there.
Sent by his superiors, he secretly entered Scotland posing as a horse trader or a soldier returning from the wars in Europe. Unable to do ...