He was the first of the companions of Saint Ignatius Loyola to be admitted to the Society of Jesus by the founder of that great society. Blessed Peter Faber labored all his life against the Protestant heretics of the sixteenth century. It was due to his influence that Saint Ignatius was able to win Saint Francis Xavier for the Society of Jesus. Saint Francis Borgia and Saint Peter Canisius both admit that they owe their vocations to his example. Whenever Blessed Peter Faber entered a town to preach, he always invoked his Guardian Angel. He also invoked the Guardian Angel of every person he spoke to. He was a great lover of obedience, and a great apostle of the Guardian Angels. He died when he was in his fortieth year, burned up with fever and consumed with love.