By Edward Pentin, National Catholic Register - In a four-page public testimony (see below) released in multiple languages Feb. 8, and whose title is taken from the Gospel of John “Let not your heart be troubled!”, the prefect emeritus of the Congregation for the Doctrine of the Faith reasserts many key teachings of the faith, reminding clergy and laity it is up to “shepherds” to “guide those entrusted to them on the path of salvation.”.. “Today, many Christians are no longer even aware of the basic teachings of the Faith,” the German cardinal laments, “so there is a growing danger of missing the path to eternal life.”