A systematic theological exposition of the later catechetical questions that explains the duties required and sins forbidden by the seventh through tenth commandments, and then treats moral culpability, aggravations of sin, and remedies. It examines chastity and sexual ethics, frugality, justice in trade, charity to the poor, theft, lying, hypocrisy, covetousness, restitution, and related occasions of vice. It also addresses human inability to keep the law, the desert of sin, faith and repentance as means of escape from divine wrath, and the function of ordinances and public worship practices, including singing and musical instruments, as outward means of grace.