Introduction
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Divisio

First part: evils that sin produces in the lives of human beings: 1) Sin deprives the human being of spiritual goods (i.e. virtutes et divitie et gratiarum actio; references to Jeremy and Basil) and temporal goods (reference to Amos). 2) Sin fills and torments the human beings with spiritual and bodily ills: in fact, it blinds the sense and intellect so that human beings are unable to see (reference to Zephaniah, Sirach, Gregory the Great); it corrupts the state of mind; it afflicts the heart, not only spiritually, but also materially (references to Psalms, 1Maccabees, John , Gregory the Great). 3) Sin moves God to wrath (references to Sirach, Psalms); God hates exceedingly those who sin without fear, for sins offend him in Heaven more than the Jews did while he was among human beings (references to Sirach and Gregory the Great). 4) Sin deprives the human being of the community of the good (references to Book of Tobit, Psalms, Gregory the Great).
Second part: damage that sin does to human beings in death: 1) Because of sin, human being is struck down and dies shamefully (references to Proverbs, Jeremy, Gregory the Great, Bernard of Clairvaux). 2) Because of sin, human being is seized by the devil (references to Psalms, Ester, Augustine, 1Peter). 3) The sinner is tortured and led to the flames of Hell (references to Sirach and Psalms). 4) The sinner is separated forever from the vision of God (references to John Chrysostom, Isaiah, Augustine).

First part Four isses are discussed, namely: 1) The origin of idolatry; 2) The multiplication of the names of the gods; 3) The role of exterior acts (opera exteriora) in the worship of God; 4) Whether it is possible to venerate a rightful dead before his/her canonization. Second part Nine possible mistakes of Christians concerning God (and his behaviour). The last one it is against the idea that after the baptism one would be forgiven for any sin and it is followed by a long exemplum taken from the life of Basil about the necessity of contrition.