Sin: Mortal and Venial
Pillar: PART 3 LIFE IN CHRIST
Sin is an offense against reason, truth, and right conscience. Mortal sin destroys charity in the heart of man by a grave violation of God's law; venial sin allows charity to subsist, even though it offends and wounds it.
Magisterial Citation: Catechism of the Catholic Church
Doctrinal Classification: DOGMA