A systematic exposition of Reformed Christian doctrine arranged around catechetical questions and answers, supported by scriptural citations and theological notes. It treats creation as an act of God producing the world from nothing, describes a six-day ordering and the declared goodness of the created order, and affirms the existence, nature, and ministerial roles of angels. It examines the creation of humanity, the divine image, and the covenantal condition of the first parents, then discusses providence in governing creatures and permitting or over-ruling moral evil. Finally it traces the fall, federal headship, the imputation and transmission of original sin, and the origin and consequences of actual transgressions.