Augustine addresses Laurentius as a guide from worldly learning to godly wisdom, organizing Christian life around faith, hope, and love: the Creed expresses faith, the Lord’s Prayer orders hope, and charity brings both to perfection. He explains creation as wholly good, with evil a privation; condemns lying; and traces humanity’s fall, inherited corruption, and need for grace. Christ, the sinless Mediator, assumes human nature through the Virgin Mary, reconciles sinners by his death and resurrection, and incorporates them into his death and rising through Baptism.

The handbook treats repentance, forgiveness, almsgiving, and works of mercy, insisting that charity cannot excuse persistent sin or unbelief. It defends divine providence and justice amid the salvation of some and the damnation of others, and explains how grace restores freedom until the blessed can no longer sin. Augustine describes judgment, the possible aid given to the departed through prayers, sacrifices, and alms, and the resurrection of incorruptible, harmonious bodies, alongside eternal punishment for the unredeemed. The seven petitions of the Lord’s Prayer culminate in love’s perfection through the vision of God.