I want to throw open the windows of the Church so that we can see out and the people can see in. Pope John XXIII More Quotes by Pope John XXIII More Quotes From Pope John XXIII Every Christian must be convinced of his fundamental and vital duty of bearing witness to the truth in which he believes and the grace that has transformed him. Pope John XXIII duty grace truth christian Christ's flock is made up of sheep that not only listen to their shepherd, but are also able to recognize his voice, to follow him, faithfully and with full awareness, on the pastures of eternal life. Pope John XXIII follow voice sheep life Christian life means sacrifice. Pope John XXIII means sacrifice christian life