Roman Catechism 23.13

Chapter 23 — Part III: The Decalogue — Introduction on the Commandments in General

Section 13. The Observance Of The Commandments Is Not Difficult — The pastor should also teach that the Commandments of God are not difficult, as these words of St Augustine are alone sufficient to show: How, I ask, is it said to be impossible for man to love -- to love, I say, a beneficent Creator, a most loving Father, and also, in the persons of his , brethren to love his own flesh? Yet, "he who loveth has fulfilled the law." Hence the Apostle St. John expressly says that the commandments of God are not heavy; for as St. Bernard observes, nothing more just could be exacted from man, nothing that could confer on him a more exalted dignity, nothing more advantageous. Hence St. Augustine, filled with admiration of God's infinite goodness, thus addresses God : What is man that Thou wouldst be loved by him ? And if he loves Thee not, Thou threatenest t him with heavy punishment. Is it not punishment enough that I love Thee not ?